iTelescope Astrophotography Planner By Charles Bracken iTelescope Webinars 2023-02-06 | Guest speaker: Charles Bracken, author of several astronomy/astrophotography books.Summary: In this video, Charles describes an imaging planner to optimize the imaging sessions he developed. There are two versions of this planner: the first is a printed book that can be purchased from Amazon. The second is a customized book that has been optimized for iTelescope members. For a small fee, Charles will email you a customized PDF version of the book optimized for your location.In the video, Charles also discusses the theory behind the planner, starting with “when it is fully dark,” “the effects of low altitude on imaging,” and the distance from the moon.Even if you are not interested in the book, this video might give you some insight into how to improve your imaging sessions. We hope you enjoy this video.iTelescope itelescope.netiTelescope Astrophotography Planner Order Form digitalstars.wordpress.com/itelescope-astrophotography-planner-order-form/?utm_source=iTelescope+Full+List&utm_campaign=83e87b721e-EMAIL_CAMPAIGN_2018_11_01_10_38_COPY_01&utm_medium=email&utm_term=0_ccda314cde-83e87b721e-315588009Deep Sky Imaging - Charles Bracken digitalstars.wordpress.comChapters 0:00 Introduction6:18 ITelescope Planner edition7:38 When you can image an object10:37 Annual Visibility Chart12:26 Imaging hours by date15:02 Rise, set, and transit hours17:03 Moon charts19:06 Objects covered in the book19:34 How to order30:00 Science behind the book30:51 When is it fully dark?34:47 Understanding the geometry of darkness37:33 Understanding the altitude of an object40:05 Understanding airmass47:33 Understanding illumination from the moon55:06 General rules of imaging with moon illumination58:23 Understanding how long an object is in the night sky1:02:54 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Probing the Shape of the Universe with the CMB iTelescope Webinars 2025-07-28 | Title: Probing the Shape of the Universe with the CMB 07-25-2025Guest Speaker: Raul Ramirez, Student, University of Barcelona,Spain.Summary: A fascinating talk by Raul Ramirez Nethersole from the Universitat de Barcelona exploring how the Cosmic Microwave Background reveals the geometry of the Universe. Raul will present results from an analysis of Planck 2018 SMICA temperature maps, used to estimate the curvature density parameter. If you are interested in the studies of CMB, this video will be for you. We hope you enjoy it!iTelescope itelescope.netThe University of Barcelona https://www.ub.eduChapter Marks0:00 Introductions2:45 Presentation (Probing the Shape of the Universe with the CMB)8:53 Poll Question # One (How large are the relative temperature fluctuations in the CMB?)11:26 The Cosmic Microwave Background (CMB)13:12 The CMB Angular Power Spectrum15:22 Poll Question # Two (By looking at the Angular Power Spectrum of the CMB, what is the characteristic angular scale of temperature fluctuations?)17:08 A rough intuition on the CMB Angular Power Spectrum18:15 The CMB as a Probe for Cosmological Models: Testing Spatial Curvature18:31 Poll Question # Three (What does it mean for our Universe to have curvature?)24:37 Poll Question # Four (Are there any problems with this method?)26:16 CMB: Finding a Big Triangle29:31 Poll Question # Five (How does Curvature affect CMB Angular Power Spectrum?)32:21 Quick Overview of CMB Data Analysis39:27 Questions & Answers#iTelescope #astrophotography #astronomy #astrophysic
Black Hole Evolution through Cosmic Time iTelescope Webinars 2025-07-09 | Title: Black Hole Evolution through Cosmic Time - 06-27-2025Guest Speaker: Junsheng (Sam) He, Student, University of Melbourne, Australia.Summary: A fascinating talk by Junsheng (Sam) He from the University of Melbourne, exploring how black holes grow and evolve across the history of the universe. Discover how these cosmic giants have transformed over billions of years to become the supermassive black holes we observe today. If you are interested in the study of black holes, this video will be for you. We hope you enjoy it!iTelescope itelescope.netThe University of Melburone https://www.unimelb.edu.auChapter Marks0:00 Introductions1:04 Presentation (Black Hole Evolution through Cosmic Time)3:31 Poll Question # One (How many hydrogen bombs do we need per second to get the same energy output?)7:18 Co-Evolution with Galaxy9:56 What is a Black Hole13:21 Black Holes are hard to observe!21:03 What about Intermediate mass black holes?21:49 Poll Question # Two (Why are black holes hard to observe directly?)24:20 Unified Model of Active Galactic Nuclei30:21 How big can a black hole grow33:38 How do you grow a black hole37:12 Poll Question # Three (Do you think it is possible to accrete faster than the Eddington limit?)39:10 How do we simulate growth of Black Holes?40:55 Can we make something that models black holes at once?45:05 Questions & Answers#iTelescope #astrophotography #astronomy #astrophysic
The Grand Design: How Large Scale Structure Illuminates Cosmology and Particle Physics iTelescope Webinars 2024-08-11 | Title: The Grand Design: How Large-Scale Structure Illuminates Cosmology and Particle Physics– 8-09-2024Guest Speaker: Abbe Whitford, PhD Student, University of Queensland, Australia.Summary: In this webinar Abbe presents how large-scale structures in the universe, of the order of GPCs (giga-parsecs), can inform scientists on cosmology and the nature of particle physics. She begins by explaining that the study of large-scales structure is important to help determine the distribution of normal matter, dark matter, and the radiation of the early universe, after the big bang.Right after the big bang, the radiation domination epoch began, where most of the energy was in the form of radiation. Over time the radiation decreased, and density of matter increased. As time continued, the dark energy domination epoch began, which is believed to be driving the expansion of the universe.On the other hand, early in the universe it is believed that neutrinos stopped interacting with other particles and started flying freely. Although it was believed that these particles had no mass, now it seems that they might have a small mass. Based on the analysis presented, the mass of neutrinos might have a direct impact on the structure of the universe.If you are interested in the study of cosmology and how it might have been influenced by neutrinos, this video will be for you. We hope you enjoy it!iTelescope itelescope.netThe University of Queensland Australia https://www.uq.edu.auAstrobites.com astrobites.org/author/awhitfordChapters00:00- Introduction01:28- Using the Large-scale Structure of the Universe 06:05- Why do we care about the Large-scale Structure of the Universe?11:39- Part 1: Uncovering the nature of the Universe with the motions of galaxies.19:07- Poll Question 1 (How fast do you think the peculiar motion can be?)20:47- Dark Matter Field vs Normal Matter Field26:02- Poll Question 2 (What fraction of matter do you think is just the dark matter?)28:57- The bulk flow motions of galaxies39:33- CosmicFlows 4 dataset43:22- Part 2: Using the sound waves in the early Universe to understand neutrinos. 44:39- Poll Question 3 (How fast did sound waves move in the early Universe?)46:43- Sound Waves as Bubbles or BAO’s data results51:57- How is this related to neutrinos? And firstly, what are neutrinos? 59:36- Questions and Answers #iTelescope#astrophotography#astronomy#astro#deepsky#cosmology
Blurring the Lines: 3D Cosmic Map from Redshift 3 Galaxies iTelescope Webinars 2024-06-29 | Title: Blurring the Lines: Mapping the Red-Shift of the Universe in 3D – 6-28-2024Guest Speaker: Delaney Dunne, PhD Student, Cal Tech University, CaliforniaSummary: In this webinar Delaney describes the experiment that she is working on called COMAP: Carbon Monoxide (CO) Mapping Array Project. She begins by explaining how stars are born out of hydrogen. Hydrogen comes in three flavors: neutral hydrogen, ionized hydrogen, and molecular hydrogen. Molecular hydrogen is the fuel that makes stars. However, clouds of molecular hydrogen do not emit light, so instead she studies the light emitted from the carbon monoxide within these clouds. In other words, where there is CO, there will be molecular hydrogen clouds, and therefore it will be a star formation region. Delaney uses the COMAP radio telescope to study highly red-shifted galaxies in the universe.If you are interested in cosmology and the study of galaxies, this video will be for you. We hope you enjoy it!iTelescope itelescope.netCalifornia Institute of Technology https://www.caltech.eduChapters00:00- Introduction01:06- Blurring the Lines: Mapping the high-redshift universe in 3D (Overview)02:18- How a Star is Born04:19- Poll Question 1 (What’s your favorite phase of hydrogen gas?)11:24- Poll Question 2 (When was the last time you checked your Carbon Monoxide Detector?)14:09- Mapping the universe through time and space25:18- Line Intensity Mapping28:47- The COMAP Pathfinder Telescope 38:48- Poll Question 3 (Have you ever seen a radio telescope in person?)41:27- What do we do with the COMAP data?49:46- Questions and Answers #iTelescope#astrophotography#astronomy#astro#deepsky#cosmology
Dancing Titans: Searching for Binary Supermassive Black Holes iTelescope Webinars 2024-06-24 | Title: Dancing Titans: Searching for Binary Supermassive Black Holes – 06-21-2024Guest Speaker: Sebastian Banaszak, PhD student, University of Wisconsin-Madison.Summary: In this webinar on super-massive binary black holes, Sebastian begins with a general description of black holes. He describes how in black holes both space and time are completely distorted. Black holes collapse its matter into a point-like singularity. As such, they are the crossover of quantum physics and general relativity.If one were to scale such a black hole by a billion times, we would get to Super Massive Black Holes (SMBH). These can typically be found at the center of galaxies, called Active Galactic Nuclei (AGN). AGN’s can have either positive or negative feedback. If the feedback is positive, it pushes cool gas spurring star formations. If it’s negative, it shoots out charged plasma.In the final part of the webinar Sebastian discusses binary SMBHBs and how he studies them using multi-messenger astrophysics (MMA). If you are interested in black holes and SMBHs, this video is for you! We hope you enjoy it!iTelescope itelescope.netUniversity of Wisconsin-Madison https://www.wisc.eduUniversity of Vanderbilt https://www.vanderbilt.eduChapters00:00 - Introduction01:31- Supermassive Black Hole Binaries: Using Light (Overview)02:37- Poll Question 1 (How much do you know about Black Holes?)04:27- Black Holes: Significance07:31- Supermassive Black Holes10:36- Poll Question 2 (If the SMBH were 1mm across, how big would the host galaxy be?)12:13- Supermassive Black Holes Binaries18:42- Detecting SMBHBs: AGN Light25:10- The Machine: 3 Methods30:13- Poll Question 3 (Which of these light curves, if any, exhibit periodic variation in brightness?)36:35- Future of SMBHB Research38:35- Questions and Answers#iTelescope#astrophotography#astronomy#astro#deepsky#cosmology
Tour of Our Universe at the Highest Energies iTelescope Webinars 2024-06-03 | Title: Tour of Our Universe at the Highest Energies – 05-31-2024Guest Speaker: Samantha Wong, PhD student, McGill University, Montreal, Canada.Summary: In this webinar, Samantha discusses high-energy astrophysics, particularly gamma-ray observations. She starts her talk by describing the different wavelengths of light and how a source like the Crab Nebula looks very different depending on whether it is viewed in radio, visible, x-rays, or gamma ray wavelengths. All types of light and particles are messengers that carry information from and about their source. Active Galactic Nuclei (AGN) are a big source of high-energy gamma rays.If you are interested in high-energy astrophysics, this video is for you. We hope you enjoy it!iTelescope itelescope.netVERITAS Telescope https://veritas.sao.arizona.edu0:00 Introduction4:57 Introduction to the EM spectrum and beyond9:45 Thinking about light as energy13:24 Poll Question: Which is not a messenger?16:25 Four types of messengers20:04 Poll Question: How many cosmic rays hit you every day?22:40 What can we find in the high-energy sky28:17 Poll Question: What is the most common thing we see at very high energies?42:22 How far can we go? 44:77 Looking for gamma-rays: high energy instruments and observations45:25 How to detect gamma-ryas from the ground50:58 VERITA gamma-ray telescopes53:35 Other gamma-ray telescopes - IACTs56:09 Observing with VERITAS57:51 Questions and AnswersChapters#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
A Roadmap to Discovering Extraterrestrial Life iTelescope Webinars 2024-03-08 | Title: Tracing Our Terrestrial Roots: A Roadmap to Discovering Extraterrestrial Life – 03-01-2024Guest Speaker: Dr. Rachel Phillips, University of South Carolina.Summary: In this talk, Dr. Phillips discusses how studying Earth’s past helps us search for alien life. It’s all about the rocks! Rocks preserve ‘proxies’ or physical, chemical, and biological signatures that help scientists reconstruct ancient climate and oceanic conditions. Studying the earth’s past helps us understand current climate trends and predict future ones. These same studies can help scientists understand the geological structure of planets like Mars.Another example is for studying Europa, one of Jupiter’s moons, which has a liquid water ocean covered by ice crust. Europa has many tectonic features similar to features found on Earth. By studying the proxies in the rocks on these planets/moons, scientists can determine if there might be life there.If you are interested in how scientists seek the conditions for life on planets and moons in our solar system, this video is for you! We hope you enjoy it!iTelescopeiTelescope itelescope.netDr. Phillips YouTube Channel youtube.com/@GEOGIRLCr. Phillips website geogirlscience.comChapters0:00 Introduction2:29 Outline of Presentation3:01 How we study Earth’s past3:55 Proxy-based reconstruction5:00 Three types of proxies: Physical, Chemical, Biological5:23 Physical Proxies14:07 Chemical Proxies27:11 Poll question: Is methane on Enceladus biotic or abiotic?32:00 Second poll question: 33:35 Biological Proxies39:37 Questions and Answers#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The Quiet Giants: Unveiling Stellar Evolution iTelescope Webinars 2024-02-25 | Guest Speaker: Dr. Ana Ennis, The Perimeter Institute, University of Waterloo.Summary: In this talk, Dr. Ennis explains how stars are born from molecular clouds. Molecular clouds condense into protostars that still do not shine. Nuclear fusion within the protostar fuses hydrogen into helium plus a lot of photons and ignites the star. As the hydrogen gets depleted within the core, the helium begins to fuse until the final stage, when it becomes an iron core. Once the star reaches this stage, it can either turn into a red supergiant or a red giant, depending on its mass. Dr. Ennis’ research is on how red giants shed their outer layers and become planetary nebulae.If you are interested in star evolution, this video is for you! We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction3:35 Stellar evolution11:07 Red supergiant stars15:50 Low mass stars19:40 Asymptotic giant branch stars21:42 2 planetary nebula29:10 AGB vs. Post AGB stars41:44 How planetary nebula enrich interstellar medium.43.57 Back to stellar evolution46:36 Q&A#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Cosmic Origins: The Dawn of Light iTelescope Webinars 2024-02-06 | Guest Speaker: Dr. Deanna Hooper, Astrophysicist, University of Helsinki, Finland.Summary: In this webinar, Dr. Hooper will discuss the Cosmic Microwave Background CMB.The CMB is one of the greatest discoveries in cosmology; it is the ‘holy grail’ of cosmology. The Big Bang model predicts that in the beginning, protons, electrons, and photons were the only particles in existence in the universe. These particles continuously bumped into each other and did not allow light to travel freely. The universe was opaque. As the universe cooled down, protons and electrons combine to form hydrogen. This allowed the photons to finally travel freely. This original light has been red-shifted into the microwave spectrum. This is the CMB. The Big Bang model also predicts that this CMB is a perfect ‘black body’, i.e. it emits light at all frequencies. Both these predictions have been confirmed through different experiments.If you are interested in cosmology and the beginning of light, this video is for you! We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction1:20 Poll Questions6:20 The dawn of light8:13 How did we get here… overview of CMB10:41 1948 the Big Bang predicts CMB16:00 1964 Penzias and Wilson21:08 1990 COBE launches21:45 1992 COBE … First image of the CMB24:00 1997 BoomeRanG launches 26:50 WMAP launches28:19 Planck launches47:20 CMB polarization52:00 Spectral distortions in the CMB56:17 Future Spectral Distortion missions1:02:59 Questions and Answers#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Journey into Dark Matter iTelescope Webinars 2024-01-30 | Guest Speaker: Dr. Maggie Lieu, Astrophysicist and Research Fellow, University of Nottingham, UK.Summary: In this webinar, Dr. Lieu begins by explaining how the universe is composed of 5% baryonic matter (i.e., matter that is visible), 27% dark matter, and 68% dark energy. Astrophysicists do not as yet know what dark matter is. They know that it is there because of how fast galaxies are moving. They appear to move too quickly, for the amount of mass is observable and should be flying off. However, they do not, meaning that either our understanding of gravity is wrong or there is more matter in the galaxy than is directly observable. At CERN, many particle physicists are conducting experiments to find a dark matter particle. To date, they have not succeeded. If nothing is found, it could be that our theory of gravity is wrong. More recently, astrophysicists have been using gravitational lensing to determine where dark matter is.If you are interested in astrophysics and studies on dark matter, this video is for you! We hope you enjoy it!Euclid Space Telescope https://www.esa.int/Science_Exploration/Space_Science/EuclidDr. Lieu’s YouTube channel Space Mog youtube.com/c/SpaceMogiTelescope itelescope.netChapters0:00 Introduction3:34 Pie chart … components of the universe6:10 Dark matter overview7:25 Vera Rubin … dark matter9:00 Direct detection experiments 12:10 How can we see dark matter?17:40 Using galaxy clusters to see dark matter22:35 Simulation of gravitational lensing by galaxy cluster26:32 Weak gravitational lensing30:29 Shear profiles31:38 Looking for tiny changes 32:25 Euclid Space Telescope35:10 Total contribution of a galaxy cluster’s mass36:05 Particle cross-sections of clusters36:44 Dark matter simulation37:38 Dark matter determines the fate of the universe39:53 Audience Questions and answer#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Cloudy with a Chance of Science iTelescope Webinars 2023-12-27 | Guest Speaker: Mr. Yoni Brandi, PhD candidate, University of Kansas in Lawrence.Summary: In this webinar, Yoni begins with an explanation of exoplanets and how they are observed, after which he talks about planetary atmospheres. Yoni describes how, when a planet transits its star, the light of the star shines through the planet’s atmosphere, which can be analyzed using a spectrograph. Depending on the chemical composition of the atmosphere, the spectrograph will show the corresponding absorption lines for that planet’s atmosphere chemicals. The radiation from the star breaks down the hydrocarbons in the planet’s clouds, creating a haze that scatters the spectral lines of that planet. This data can help determine how hot the planet is and how clear its atmosphere is. If you are interested in exoplanetary atmospheres, this video will open your eyes to the fascinating study of atmospheric haze models and how they are used to analyze the atmospheric conditions of exoplanets. We hope you enjoy it!iTelescope itelescope.netClouds and Clarity: Revisiting Atmospheric Feature Trends in Neptune-size Exoplanetsarxiv.org/abs/2310.07714Chapters0:00 Introduction6:25 Intro to Exoplanets12:42 Planetary Atmospheres 14:26 Planetary atmospheric probes19:20 Current work22:49 Atmosphere composition24:57 Clouds and Hazes27:12 Observing Clouds28:26 Clarity and Trends35:00 Modeling haze36:34 Takeaways #iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
What we cant see in the Universe iTelescope Webinars 2023-12-17 | Guest Speaker: Dr. Luna Zagorac, Postdoc Fellow, Perimeter Institute.Summary: In this webinar, Dr. Zagorac will talk about things that we can’t see in the universe. She begins her talk with what we can see in the universe before she talks about what we can’t see. Some of the things that we can see are tiny, like electrons, neutrinos, protons, muons, etc. In addition, we have gravitational waves that are also observable. As it turns out, however, the universe is composed of 70% dark energy and 30% matter. Of that 30% matter, 80% is considered dark matter which does not interact with light. Astronomers have determined the existence of dark matter by calculating the amount of matter necessary to hold galaxies together. Based on these calculations, they have determined that there needs to be a lot more matter than is observable to keep galaxies together. This non-observable matter is called dark matter. In her talk, Dr. Zagorac proposes that dark matter might be fuzzy, consisting of extremely tiny particles called axons. Axons behave like electrons in an atom but are so much smaller.If you are interested in what the universe is made of, this video will open your eyes to the fascinating study of fuzzy dark matter. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction2:05 Preview of presentation2:50 What we see in the universe11:28 What we don’t see in the universe16:45 Pie-chart of the universe18:20 If we can’t see it, how do we know it’s there?20:35 Where does dark matter live?21:38 Figuring out where dark matter comes from24:19 Is dark matter fuzzy, AKA axions29:00 Dark matter halo’s36:30 Recap#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
A Portrait of the Sun as a Young Star iTelescope Webinars 2023-12-05 | Guest Speaker: Ivey Davis, PhD Student, Cal Tech University, CaliforniaSummary: In this webinar, Ivey introduces us to space weather on the sun and on other stars. She explains that space weather refers to both the electromagnetic radiation that is seen in the form of solar flares as well as all the particles that emanate due to the flare event. These particles include photons, electrons, and protons. In the past, space weather was difficult to observe due to the brightness of the sun’s surface. That changed with the invention of coronagraphs. Extreme energetic solar flares can produce Coronal Mass Ejections (CMEs). Understanding the space weather produced by the sun helps us understand the space weather from other stars.If you are interested in solar astronomy, this video will open your eyes to the fascinating world of space weather. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction1:52 Instrumentation9:40 Presentation Overview10:25 Space Weather background15:06 What produces Space Weather18:24 How do you observe Space Weather?21:37 Visible Light27:23 Space weather for younger stars28:40 Radio Light32:30 Using the Long Wavelength Array …Owens Valley Radio Observatory38:45 Space Weather for longer stars in Radio Light42:41 Summary #iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The Incas Astromony: Dark Constellations iTelescope Webinars 2023-11-26 | Guest Speaker: Ana Maria Milla, Director of the Cusco Planetarium in Cusco, PeruLink: Planetarium Cusco – planetariumcusco.comSummary: Have you ever wondered how indigenous cultures viewed the night sky? In this very special talk, Ana Maria presents how the Incas studied astronomy. As you might imagine, given some of the unique features of Peruvian geology, Incan Astronomy is deeply focused on agriculture. They developed sophisticated agricultural calendars. As described by Ms. Milla, Incan Astronomy is primarily centered on the shapes in the dark nebulae within the Milky Way, which in Quechua is referred to as the Hatun Mayu. There, you will find the Black Llama or Yacana Constellation, the Baby Llama or Uñu Constellation, and the Fox or Atoq Constellation, among many more dark constellations. This is an interesting look at the mythical aspects of Incan Astronomy.If you are interested in anthropological astronomy, this video will open your eyes to the fascinating world of Incan Astronomy. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction2:49 Inkan astronomy4:25 Cultural astronomy6:10 Peru sky and Earth 7:12 Peruvian geography14:47 Inka astronomy17:00 Inka timeline17:48 Pre-Inkas 20:49 Inka developments23:38 Chankillo Ancient Astronomical Observatory27:28 Caral ancient city32:45 Sun, Moon & Star calendar34:53 Hatun Mayu - The Great River- Milky Way37:28 Yacana or Qatachillay - Black Llama39:09 Unu Llama - Baby Llama39:33 Atoq - The Fox40:19 Michi - Shepherd with Slingshot41:25 Andean - Condor41:55 Andean Partridge — Lluthu43:39 Toad - Hampatu44:50 Water Snake - Machaqway45:00 Legend of Qatachillay47:10 Good Bye - Anay#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Unlocking Cosmic Mysteries iTelescope Webinars 2023-11-20 | Guest Speaker: Dr. William Lamb, PhD Candidate, Vanderbilt UniversityIn this talk, William talks about unlocking some cosmic mysteries using the NANOGrav Pulsar Timing Array Experiment. These mysteries involve binary black holes and how they interact with each other. To study these binary systems, Mr. Lamb studies the gravity waves that they produce. Gravitational waves come in different wavelengths, and based on their spectrum, different detectors need to be used. Thus, LIGO is used to study compact binary inspirals that produce high-frequency waves where, over time, the two black holes merge. On the other hand, NANOGrav is used to discover low-frequency gravity waves where the black holes in the binary system are very far apart. The expectation is that there are many more of these low-frequency-producing binary systems. NANOGrav uses pulsar timings to detect these low-frequency gravitational waves. Thus, contrary to LIGO which is an earth-based detector to detect waves that are 1-2 kilometers in wavelength, NANOGrav is a universe-size detector to detect gravitational waves that are several light years in wavelength.This video will help you understand how astronomers use pulsar timings to detect low-frequency gravitational waves. We hope you enjoy it!Learn more about NANOGrav. nanograv.orgLearn more about iTelescope itelescope.net0:00 Introduction3:09 Overview of Presentation3:29 What is gravity?4:11 What are Black holes?7:02 Supermassive Blackhole Binaries7:58 Gravitational Waves14:20 Poll Question #117:45 Poll Question #218:38 What are Pulsars?20:53 Using pulsars to detect gravitational waves21:13 Poll question #323:23 What are pulsar timing arrays?27:10 What is NANOGrav ?29:49 Why is this important?44:22 The future of pulsar timing arrays#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Never Asks a Star its Age iTelescope Webinars 2023-10-09 | Guest Speaker: Dr. Mark Popinchalk, American Museum of Natural HistorySummary: In this video, Mark explains how astronomers use the rotation of stars to determine their age. Dr. Popinchalk describes how the bigger a star is, the hotter it must burn in order to maintain hydrostatic equilibrium. This means that O-type stars might only live 4 million years compared to M-type stars that might live to 700 billion years. An interesting fact is that coronal mass ejections of stars tend to slow the rotation of the star due to the law of conservation of angular momentum. Astronomers use “starspots” to create the light curve of the star and thus determine its speed of rotation. It turns out that the slower the star rotates, the older it is.This video will help you understand how astronomers use star rotation to determine their age. We hope you enjoy it!iTelescope itelescope.netAmerican Museum of Natural History amnh.org/research/physical-sciences/astrophysicsChapters0:00 Introduction3:49 My Path to my Ph.D.6:20 Ph.D. work9:33 Stars 10117:44 How to guess a star’s age28:22 Using space telescopes to measure a star’s age37:55 Conclusions38:23 Bonus Light Curves#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Decoding the Geology of Distant Planets iTelescope Webinars 2023-09-24 | Guest Speaker: Junellie Gonzalez Quiles, PhD Candidate, Johns Hopkins University.Summary: In this video, Junellie explains how astronomers use different techniques, such as the transit technique, for detecting and confirming the existence of exoplanets. Exoplanets can be categorized into Terrestrial-like, Neptune-like, Gas giants, etc. There is also a Super-Earth category for bigger and more massive Earth-like exoplanets. Astronomers use spectroscopy to study the chemical composition of the atmosphere of exoplanets as they transit in front of their stars. Using these techniques, astronomers are trying to identify planets in the habitable zone, i.e., planets at the right distance from their stars to have liquid water. Junellie uses the geological processes of the planets/moons of the solar system to understand similar processes in exoplanets.This video will help you understand how astronomers use different techniques to study exoplanets and try to identify those in the habitable zone. We hope you enjoy it!iTelescope itelescope.netJunellie Gonzalez Quiles junelliegonzalez.wixsite.com/spacejunellieChapters0:00 Introduction3:40 1st poll question: How many exoplanets have we discovered so far?5:41 Overview of planets7:00 2nd poll question: Can we see the same detail in exoplanets that we see in our own solar system plants?8:20 The best images of exoplanets so far.10:10 methods fused to detect exoplanets.11:19 Overview of different types of exoplanets.12:38 Exoplanet hosts stars and using the transit method for detection.13:29 3rd poll question: Which type of star will produce a larger transit signal when a planet orbits the star? 14:53 4th poll question: If you have the same type of star, which type of planet (large or small) will produce a bigger transit signal?16:50 How we can detect an exoplanet’s atmosphere18:00 Using the JWST for exoplanet research20:20 What is the habitable zone?22:14 Why only looking at the atmosphere of an exoplanet is not enough to suggest life?23:00 Deducing the geology of exoplanets by studying their atmosphere.24:02 5th poll question: can we see volcanoes on exoplanets?25:50 How do geological processes impact the atmosphere?30:25 How do I study geological processes on exoplanets?33:16 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
How X Rays reveal the secrets in Seyfert 2 Galaxies iTelescope Webinars 2023-09-21 | Guest Speaker: Andrealuna Pizzetti, PhD candidate, Clemson University.Summary: In this video, Andrealuna explains how she uses X-rays to understand the geometry and morphology of active galactic nuclei (AGN) obscuring material at the center of nearby galaxies. She uses data collected from x-ray telescopes in orbit, from galaxies that have supermassive black holes in their center that are still accreting matter.Seyfert galaxies are those that have AGN without jets emanating from them. Seyfert 1 galaxies are those whose AGN accretion disc can be observed directly, while Seyfert 2 galaxies are those whose AGN accretion disc is obscured. Andrealuna’s research is on these latter types of galaxies.This video will help you understand how astronomers use X-ray telescopes to study the composition of the obscuring matter surrounding the AGN of galaxies. We hope you enjoy it!iTelescope itelescope.netLearn more about the Clemson INAF CT-AGN Project. https://science.clemson.edu/ctagn/0:00 Introduction2:53 Outline of presentation3:33 Aim: Understand the geometry and morphology of AGN-obscured material via X-rays5:25 What is an AGN?8:24 Seyfert 1, Seyfert 2, Blazar, RL Quasar and Radiogalaxy morphology10:21 Spectra of Seyfert 1 and Seyfert 2 galaxies.12:17 Seyfert 2 subclasses13:12 How does the obscurer material reprocess the radiation?22:23 Morphology of the obscuring material29:47 A more detailed study is needed to determine the morphology of the torus. 32:07 Pilot Project NGC 747940:10 What does studying spectra tell us?41:48 Ongoing Project 44:20 Clemson- INAF CT-AGN Team#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
New Dimensions in Time Series Analysis for Exoplanet Detection iTelescope Webinars 2023-08-26 | Guest Speaker: Jack Lubin, PhD, UCLA.Summary: In this video, Dr. Lubin explains how studying the sinusoidal shift in the radial velocity (RV) in a star system can be used to determine the existence of exoplanets revolving around the star. This method contrasts with another method called the Transient Detection method, which studies the rise and fall in intensity of the starlight as the exoplanet crosses in front of the star in our line of vision. The RV method studies the Doppler shift in the absorption lines of the stellar spectrum due to the influence of an exoplanet rotating the star. By examining the amount of the Doppler shift, this method allows for the measurement of the exoplanet's mass and can serve to provide the base data for future imaging surveys using space telescopes.If you are interested in how astronomers use different methods to discover exoplanets, this video will help you better understand this. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction1:57 What is radial velocity (RV)?4:54 Importance of using RV 6:32 What type of exoplanets can we see using RV?9:00 How stellar activity impacts RV measurements11:43 Pushing the boundary of RV14:00 Using Barnard’s star as a case study28:36 Summary of what was learned studying Barnard’s Star29:58 Finding localized signals31:37 L1A or LIA method 39:23 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
iTelescope for New and Advanced Members iTelescope Webinars 2023-08-12 | Instructors: Dr. Christian Sasse, Astronomer-in-charge, and Leigh Moore, Chief Software Developer iTelescopeSummary: In this instructional video, Christian will guide you through the iTelescope website and how to navigate the iTelescope launchpad/dashboard). As part of this instructional video, Dr. Sasse shows you how to use the iTelescope planner, combined with information on the Telescopius website, to help you plan your imaging session, both in terms of the best telescope to use and the best time to start imaging. For this demonstration, Christian uses the Iris Nebula as the target and T11 located at the Utah Desert Remote Observatory. He then shows you how to set up a reservation for the telescope to run the imaging plan you created. This is a wonderful opportunity for new (and advanced) members to learn how to navigate the iTelescope website, the launchpad, and the planner and to also learn some basic image processing. We hope you enjoy this video! iTelescope itelescope.net Chapters0:00 Introduction1:19 Login Screen2:51 On-Click images3:53 Downloading your images5:50 Using Astro Pixel Processor 11:05 iTelescope launchpad15:37 Initiating an imaging plan26:26 Planning using deep sky objects menu33:45 Making a reservation39:00 Reservation summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Unleashing the Power of JWST & ALMA: Revealing the Mysteries of Galaxies in the Early Universe iTelescope Webinars 2023-07-23 | Title: Unleashing the power of JWST & ALMA – Revealing the Mysteries of Galaxies in the Early UniverseGuest Speaker: Lucie Rowland, PhD Student in Astrophysics – Leiden University & London ObservatorySummary: In this talk, Lucie talks about her big research topic, “Characterizing Massive, Star-Forming Galaxies at High Redshift with ALMA and JWST.” Ms. Rowland is an observational astrophysicist that studies Massive Galaxies, those that are 100 to 1000 x larger than the Milky Way, with ALMA and JWST. These galaxies collide with each other and get even more massive. This is a laboratory for some extreme physics. Star-forming massive galaxies will be brighter and will have bright emission lines. Lucie studies massive bright galaxies with redshift z greater than 6, which is known as the re-ionization era. ALMA is an interferometer telescope that operates at wavelengths of 0.32 to 3.6mm, while JWST operates in near to mid-infrared wavelengths.This is a fascinating opportunity to learn how observational astronomers use ground-based and space-based telescopes to study high redshift galaxies. We hope you enjoy it!Visit Astrobits astrobites.orgiTelescope itelescope.netChapters0:00 Introduction5:10 Characterizing massive star formation7:12 Star-forming galaxies9:30 Characterizing massive star-forming galaxies11:50 Poll question How would you define high red-shift?16:35 Reionisation era17:35 Using ALMA for high red-shift studies18:37 Using JWST for high red-shift studies20:33 Hierarchical structure formation theory22:20 REBELS team23:00 Poll question What does REBELS stand for?28:19 Launch of JWST30:00 Poll question How do we find high red-shift galaxies?37:24 WEBB spectra identification39:00 How do we estimate the red-shift of distant gales?44:40 Panic at the Disco and JWST44:57 Combining ALMA and JWST REBELS48:33 Summary #iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Fun with The SUN iTelescope Webinars 2023-06-26 | Speakers: Dr. Christian Sasse, Astronomer-in-charge, and Leigh Moore, Software Developer iTelescopeiTelescope Announcement: In this video, Christian and Leigh announce the addition of a dedicated remote-access Solar Telescope located at Siding Springs! The Sun Telescope is an Explore Scientific Refractor at f/7.5 with a Daystar Filter calibrated to 0.4 angstroms which provides massive contrast with a Barlow that extends the focal length to f/32. The field of view is 1/27th of the sun. Anyone will be allowed to operate the Sun Telescope independently in 1-hour sessions using a pay-as-you-go system of payment. iTelescope will offer guides and videos on processing the data from this telescope. iTelescope is unique in offering access to a remote solar telescope to everyone. We hope you will take advantage of this unique opportunity!iTelescope itelescope.net#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Chasing Ghosts: Searching for Neutrinos from Astrophysical Sources iTelescope Webinars 2023-05-31 | Guest Speaker: Jessie Thwaites, Ph.D. candidate – University of Wisconsin-MadisonSummary: Along with being a Ph.D. student, Jessie works at the IceCube Neutrino Observatory located in Antarctica. In this talk, Jessie explains how by using different astrophysical messengers, astronomers can garner information about the universe. There are four main astrophysical messengers: photons, cosmic rays, neutrinos, and gravitational waves. Neutrinos are chargeless, massless particles that emanate from neutron particle decay. The IceCube Neutrino Observatory captures the “light boom” the neutrino produces as it interacts with the ice. With these detectors, astronomers can inform other astronomers that a transient astronomical event is happening in real-time.This is a fascinating opportunity to learn how physicists and astronomers use astrophysical messengers to probe the universe. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction2:13 Poll Question… How many astronomical neutrinos does IceCube see each year?4:07 Poll Question…What is multi-messenger astrophysics?5:57 The Universe as seen in different wavelengths of light7:52 Victor Hess & Cosmic rays9:34 What are neutrinos?11:51 Multi-messenger astronomy16:01 Question… 18:26 How to detect neutrinos22:22 Event signatures in IceCube24:21 How to separate background neutrinos from astrophysical neutrinos26:57 Detection from NGC 106828:34 Questions…32:45 Transient astronomy35:26 2 Searched for neutrinos from astrophysical sources in real-time36:00 What are Gamma-ray bursts (GRB)?38:20 BOAT: Brightest of all time GRB40:47 Did IceCube see the BOAT?43:39 IceCube will use the information for gravitational wave detectors46:20 Four follow-ups have been seen so far47:02 Conclusions and summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
At the Edge of Chaos: The Dynamics of Directly Imaged Exoplanets iTelescope Webinars 2023-05-13 | Guest Speaker: Clarissa Do Ó, Ph.D. candidate – UC San DiegoSummary: In this talk, Clarissa explains that there are different methods that astronomers use to find exoplanets, from the transit method and the radial velocity method to the direct imaging method. This last method uses a coronagraph to cover the light from the star. Clarissa then describes the two main theories of planetary formation, the core accretion model and the gas collapse model. Planets in a planetary system can interact with each other in such a way that their mean motion resonance can disrupt their orbits which can also destabilize their orbits. This is a fascinating opportunity to learn how astronomers conduct direct imaging of exoplanets. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction2:10 Exoplanets in Context3:29 How do we find exoplanets?5:15 Poll Question - What percent of exoplanet detection is down with direct imaging?7:04 Direct imaging is very hard9:03 How exoplanets have been discovered so far…9:51 Directly imaged planets10:59 How do directly imaged exoplanets form?12:00 Gas giant formation theories13:34 Planet formation and orbits17:15 Learning about exoplanet stability19:34 Mean motion resonance and orbital stability20:35 Poll question- Do we have any object in mean motion resonance in our solar system?23:14 resonance can be traced back to the formation of the planet27:31 Current research on direct imaging29:26 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
iTelescope introduction for Members iTelescope Webinars 2023-05-08 | Instructors: Dr. Christian Sasse, Astronomer-in-charge, and Leigh Moore, Software Developer iTelescopeSummary: In this instructional video, Christian will guide you through the iTelescope website (iTelescope - Leaders in Internet Astronomy since 2006) and how to navigate the iTelescope launchpad/dashboard (iTelescope.Net Launchpad V2) tinyurl.com/2v2xphd4As part of this instructional video, Dr. Sasse will walk you through how to take images using the T08 telescope located in Sidings Spring, Australia, of IC2944, also known as the Running Chicken Nebula. He will then show you how the calibrated images can be processed using Astro Pixel Processor (https://www.astropixelprocessor.com). Christian then shows you how to use the iTelescope planner, combined with information on the Telescopius website (telescopius.com), to help you plan your imaging session, both in terms of the best telescope to use and the best time to start imaging. He then shows you how to set up a reservation for the telescope to run the imaging plan you created. This is a wonderful opportunity for new (and advanced) members to learn how to navigate the iTelescope website, the launchpad, and the planner and to also learn some basic image processing. We hope you enjoy this video! iTelescope itelescope.netChapters0:00 Introduction6:20 Understanding the Launch Pad8:04 Navigating to telescope pages8:55 Imaging under a full moon10:00 Choosing the right object11:45 Imaging and planning13:39 Accessing your imaging data16:36 Quick process using Astro Pixel Processor21:00 In-depth look at the launch page24:23 Using the iTelescope planner and choosing the appropriate telescope33:56 Making a reservation38:00 iTelescope’s main page40:22 Free telescope use#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Supernova Remnants: The Fingerprints of Stellar Death iTelescope Webinars 2023-05-07 | Guest Speaker: Sonja Panjkov, University of MelbournSummary: The way that a star is going to die is determined by big it is when it was born. A star is considered massive if its mass is greater than 8 solar masses. Massive stars live fast and die young. With massive stars, hydrogen burning leads quickly to helium burning. This increases the core temperature, and the star expands, thus cooling the outer layers. At this point, the star evolves into a red supergiant. Once helium fusion stops, the star's core collapses and creates a supernova. This is called a “core-collapse supernova,” which creates either a neutron star or a black hole, depending on the mass. The remnants of these stars can be very beautiful. Examples of such supernova remnants are the Crab Nebula, Tycho SN, and 1987A SN.If you are interested in how stars evolve and die, this video will help you better understand these objects. We hope you enjoy it!iTelescope itelescope.netChaptersChapters0:00 Introduction1:33 Stellar evolution2:30 Massive star death greater than 8SM7:35 Fate of Small Stars less than 8SM10:58 Type IA supernovae12:30 Supernova facts14:21 Supernova remnants15:35 Why study supernova remnants?19:41 Three main populations of supernova remnants21:36 Small Magellanic Clouds (SMC)24:28 X-ray emission from remnants27:16 Chandra X-ray Observatory28:37 Studying remnants30:17 Studying asymmetries33:14 Poll Question36:36 Studying remnants in the SMC43:45 Comparing SMC remnants to other galaxies47:15 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Black Holes and Revelations iTelescope Webinars 2023-04-09 | Guest Speaker: Andrealuna Pizzetti, Ph.D. Candidate, Clemson University.Summary: Along with being a Ph.D. candidate, Andrealuna is a long-time member of iTelescope and shows several images she has taken with iTelescope scopes. This is the first of two talks given by Andrealuna. She begins this talk by looking at the Earth and our sun. She then compares the evolution of our sun to that of other stars. She also describes and shows images of star-forming regions. Ms. Pizzetti then describes three types of black holes; stellar mass, intermediate mass, and supermassive black holes, and what it takes to form these.If you are interested in how stars and black holes form and behave, this video will help you better understand these objects. We hope you enjoy it!iTelescope itelescope.netChaptersChapters0:00 Introduction3:45 The beginning of my journey5:01 Examining Earth8:49 Examine the Sun13:43 Explanation of blackbody radiation 17:30 Size and mass of the Sun20:19 Where do stars come from?30:00 Images from iTelescope and Hubble archive.39:39 Planetary nebulae42:51 Types of black holes 50:15 A bit of mathematics 59:52 What happens when you enter the event horizon1:02:15 The Milky ways black hole#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The formation of gas giants iTelescope Webinars 2023-04-02 | Guest Speaker: Sabina Sagynbayeva, Ph.D. Student, Stony Brook UniversitySummary: In this video, you will learn how gas giant planets are formed. Sabina begins by explaining how Jupiter was formed and its influence in forming and establishing the solar system's architecture. She then describes protoplanetary disks and how they are formed. She also mentions how she uses hydrodynamical simulations to understand planetary formation around far-away stars.If you are interested in the theoretical aspects of planetary formation, this video will help you better understand how astronomers study the formation and evolution of exoplanets. We hope you enjoy it!iTelescope itelescope.netMs. Sagynbayeva website ssagynbayeva.github.ioChapters0:00 Introduction2:23 Planetary architecture 6:28 Poll questions8:12 Extrasolar worlds detected9:21 Giant planets10:16 Astrophysics of planet formation Poll question12:51 Protoplanetary disks15:45 Core accretion 19:30 Giant protoplanets open gaps22:20 Circumplanetary disks27:15 Giant Planet satellites28:52 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Mosaic Image Processing 2 - Easy steps to stunning images iTelescope Webinars 2023-03-26 | Instructor: Dr. Christian Sasse, Astronomer-in-charge of iTelescopeSummary: This is Part 2 of the Mosaic Image Processing instructional video. If you haven’t yet viewed Part 1, we highly recommend you do that first. You can find it here: youtube.com/watch?v=MVuKQJeFpLA&t=6sAs part of this Part 2 tutorial, iTelescope has made available the 6 integrated Broadband (RGB) and Narrowband (HSO) images of the entire 7-hour exposure image set, which was made available in Part 1. You can download these integrated images here: dropbox.com/t/5AEuinB8T3IEDZFU. IF YOU POST THE IMAGE, PLEASE GIVE CREDIT TO iTelescope. In this tutorial, Christian will demonstrate how to use Astro Pixel Processor (APP) to construct the 2x2 panels of the Large Magellanic Cloud (LMC) from the 6 integrated images.Once the entire image is constructed in APP and exported as a TIFF file, Dr. Sasse will show you how to load it into Lightroom and use masks to fine-tune the final image to your liking. He also shows you how to use Viveza to adjust the final image.YOU CAN USE THE CHAPTERS AS NOTES FOR FOLLOWING ALONG IN APPiTelescope itelescope.netChapters0:00 Introduction3:15 Uncheck Muti-Session Processing and name the project3:33 Load all light frames4:22 Examining individual images6:26 Open the Tool menu to combine an RBG image7:00 Select the RGB1 formula to combine the RBG image7:42 Enable saturation and adjust saturation slider and threshold sliders8:22 Press recalculate on the right panel9:01 Trying other RGB combination formula10:05 Saving intermediate images.10:50 Calibrating star colors, click on Calibrate star colors11:13 Eliminating gradients, 1) pull saturation all the up, 2) place very small boxes in the background devoid of stars.13:30 Recalculate background17:25 Saving intermediate image17:40 Where to select stars for star color calibration?18:20 Explanation of how star color calibration works19:17 Adjusting the scene stretch and saturation, try 10% stretch and take the saturation down to ~2019:55 Saving intermediate image20:21 Adding narrowband data, choose RGBHSO21:20 Select None for Normalization 22:02 Add Narrowband channels and the last RBG-adjusted image22:24 Explanation of the process22:48 Select recalculate on the right panel after all the images load23:25 Adjusting the HOS mixing. Add 25% green to the O channel, Remove all green, and add 100 red to the S channel24:30 Recalculate to display new image25:00 Explanation about experimentation27:04 Saving intermediate images28:09 Remove light pollution gradients, add very small boxes to the background of the image30:20 Lower stretch to 10% and saturation to display a more pleasing image30:50 Saving intermediate image31:00 Explanation of final editing in Lightroom and 32:09 Exporting image as TIFF 34:37 Lightroom explanation36:00 Adjusting the temperature, saturation, vibrance, and color grading40:35 Using masks in LR43:50 Exporting image from LR45:10 Opening image in Viveza 348:50 Grouping masks in Viveza50:35 Saving image in Viveza52:30 Final Crop in LR54:50 Wrap-up#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The Universe in a Computer iTelescope Webinars 2023-03-25 | Guest Speaker: Roan Haggar, Postdoc fellow, University of WaterlooSummary: In this video, you will learn how astronomers conduct simulations regarding the universe. The time scales required to study the evolution of any astronomical object can be in the hundreds of thousands to billions of years. Simulations allow astronomers to speed up time to study very long evolutions. To build a simulation, you need matter; initial conditions; and gravitational physics. Simulations are used to point out mistakes in physics. They also provide constraints on physics – it allows astronomers to do experiments.If you are interested in how simulations are used to study the early universe and how astronomers can use them to do experiments, this video is for you. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction3:44 Hand-drawn Whirlpool Galaxy vs. Hubble Whirlpool image6:08 Milky-way Galaxy7:41 Poll Question 11:14 Evolution in astronomy13:58 What are simulations?15:07 Merger of the Milky-way and Andromeda Galaxy16:41 Simulation after the Big Bang21:02 How do we build a simulation?23:00 Limits on simulations25:57 Setting initial conditions27:17 Physics used in simulations29:03 Why are simulations useful?36:59 Can you spot the simulation?43:29 What’s next with simulations?#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Mosaic Image Processing 1 - Which Settings? iTelescope Webinars 2023-03-25 | Instructor: Dr. Christian Sasse, Astronomer-in-charge of iTelescopeSummary: In this instructional video, you will learn how to process mosaic images using Astro Pixel Processor (APP) (Astro Pixel Processor). We suggest downloading the latest version of APP V2.0 Beta14 (astropixelprocessor.com/community/release-information/astro-pixel-processor-2-0-0-beta14-release-notes/). As an additional gift for participating in this instructional video, iTelescope has made the entire image set for you to follow along and build your own mosaic dropbox.com/t/YC4GiJCtKsgLBdVz.The image set is 2x2 panels of the Large Magellanic Cloud (LMC). The images are in two folders: the Images folder has the entire set of 120 subs in RGB and SHO for a total exposure time of 7 hours. The demo folder has an RGB image for each panel which Christian uses in the video to speed up the processing time. NB. Give yourself time to download the image set since it is over 13GB. This is Part 1 of the instructional video, where Dr. Sasse walks you through the setup process for building that stacked images within APP. In Part 2 of the instructional video, Christian finalizes the mosaic image.This is a wonderful opportunity to learn advanced image processing using APP. Furthermore, thanks to iTelescope, you get a huge and complete image set to build for yourself a 2x2 mosaic of the LMC in RGB and SHO. We hope you enjoy it! IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescopeitelescope.netAstro Pixel Processor astropixelprocessor.comLink to download images. IF YOU POST THIS MOSAIC, PLEASE GIVE CREDIT TO iTelescopeitelescope.netChapters0:00 Introduction2:59 APP Overview description.5:10 choosing your working directory5:25 Download folder descriptions6:15 New folder creation — workflow directory6:50 Disable multi-session processing7:05 Giving your project a name7:28 Loading images8:33 Ignore the pop-up window8:44 Repeat the loading process for each folder10:22 Processing cheat sheet (see below)12:15 Skip tab 2 (calibrate)12:21 Tab 3 Analysis Stars12:41 Registration - Switch Mode to mosaic. 13:13 Understanding Scale Start and Stop14:50 Enable Use dynamic distortion correction15:30 Start registration, disable same camera and optics16:44 Understanding the frame list panel 18:00 Tabe 5 Normalization, change to advanced mode18:54 Opening an image — using the preview window21:40 Tab 6 Integration — Change filter to median or leave it on automatic. 22:19 Understanding Local Normalization Correction23:15 Understanding Multiband Blending24:19 Setting the Name of the Object26:32 Seeing the first mosaic26:52 Stretching the preview window27:36 What to do if the mosaicing does not work28:36 Individual stacking of panels29:00 Naming each panel29:47 Jumping straight to Integration30:50 Repeat for the remaining three panels — close APP between each panel 35:40 Looking at the completed work directory36:14 Assembling the individual four panels36:55 Tab 4 Registration41:05 Composited image Cheat Sheet- First, try to run all panels together- Set (Tab 4) Register- Change registration mode from normal to mosaic- Use Dynamic Correction (answer yes if asked)- Use Same Camera and Optics (answer no if asked)- Set (tab 5)N normalize mode to advance- Set (tab 6) Integrate- Integrate median (it is better for image qualities less than 20 per channel and pane)- Local normalization correction 1st-degree LNC- Enable MBB (multi-band Blending, each color is blended) Slider to 10%If this fails, first integrate panel by panel, then with all integrated panels together and run above.#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Bubbles, Strings and Other Quirks in the Early Universe iTelescope Webinars 2023-03-20 | Guest Speaker: Anna Kormu, Ph.D. student, University of HelsinkiSummary: In this video, you will learn about cosmic strings, bubbles, gravitational waves, and phase transitions. Anna explains these concepts and describes how theoretical physicists construct a model for the very early universe using these concepts.If you are interested in theoretical physics and the early universe, this video will help you better understand these concepts. We hope you enjoy it!Chapters0:00 Introduction0:48 Poll question…What are cosmic strings?2:38 The early universe 10X^-12 seconds4:43 Gravitational Waves (GW)7:59 Short history of GW10:14 Phase transitions in the early universe13:42 Bubbles18:42 Cosmic Strings …Topological defects22:14 Breaking the symmetry of the Universe24:59 Cosmic Strings28:42 Magnetic monopoles & Cosmic Strings32:28 Primordial black holes35:47 Can a signal be detected from these?44:15 Conclusions#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Pulsars: Enigmatic Cosmic Lighthouses iTelescope Webinars 2023-03-14 | Guest Speaker: Evan Lewis, Graduate student at West Virginia University (WVU)Summary: In this video, you will learn about pulsars, what they are, how they evolve, and how they are studied. Evan describes how the fusion reaction inside of a star “hits a wall” once iron is created in its core. What happens next depends on the mass of the star. If it’s large enough, it can collapse in a supernova explosion into a neutron star. A pulsar is a type of neutron star with a very fast rotation and has a very high magnetic field. Evan explains how radio astronomers use sky surveys to find new pulsars. Pulsars are so precise in their rotations that they rival atomic clocks.If you are interested in the evolution of stars into neutron stars and pulsars, this video will help you better understand these amazing objects in our universe. We hope you enjoy it!iTelescope itelescope.netChapters0:00 Introduction2:05 How Pulsars are made8:12 Properties and Population14:37 Searching for new sources31:48 Using pulsars as clocks42:20 What you can do with pulsars timing45:57 Single Pulsars and RRAT’s52:17 Millisecond pulsars52:20 Fun fact about pulsars#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
iTelescope introduction for New and Advanced Members iTelescope Webinars 2023-03-05 | Instructors: Dr. Christian Sasse, Astronomer-in-charge, and Leigh Moore, Software Developer iTelescopeSummary: In this instructional video, Christian will guide you through the iTelescope website (iTelescope itelescope.net - Leaders in Internet Astronomy since 2006) and how to navigate the iTelescope launchpad/dashboard.As part of this instructional video, Dr. Sasse will walk you through how to take images using the T10 telescope located in Sidings Spring, Australia, of IC2944, also known as the Running Chicken Nebula. He will then show you how the calibrated images can be processed using Astro Pixel Processor astropixelprocessor.com Christian then shows you how to use the iTelescope planner and information on the Telescopius website to help you plan your imaging session, both in terms of the best telescope to use and the best time to start imaging. He then shows you how to set up a reservation for the telescope to run the imaging plan you created. Leigh also describes how the “Full Moon Happy Hour” works and how members can use telescopes for free during the full moon.This is a wonderful opportunity for new (and advanced) members to learn how to navigate the iTelescope website, the launchpad, and the planner and to also learn some basic image processing. We hope you enjoy this video! iTelescope itelescope.netLink to Webinar by Charles Bracken — iTelescope Astro Planner youtube.com/watch?v=MdeZdu6GXoAiTelescope Astrophotography Planner Order Form https://digitalstars.wordpress.com/it...Astro Pixel Processor free 30 day trial astropixelprocessor.com Chapters0:00 Introduction1:30 iTelescope launchpad interface7:07 Downloading data10:56 Simple image processing with Astro Pixel Processor17:06 How to plan your observations22:15 How to use deep sky planner23:48 Filters and binning 27:40 Selecting filters and exposure length29:30 Making a reservation31:37 Pricing and full moon happy hour34:55 iTelescope Webinars36:16 ITelescope Astro Planner37:53 Free images for members#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Hidden Relics: Stellar Halos & Ultra Faint Dwarfs as fossils of Galaxy Evolution iTelescope Webinars 2023-02-26 | Guest Speaker: Katya Gozman, Ph.D. candidate, University of MichiganSummary: In this video, you will learn why and how astronomers study ultra-faint dwarf (UFDs) galaxies. Katya begins by giving us a modern definition of a galaxy, given new findings from the HST and JWST. Dwarf galaxies range from having only a few hundred stars to a few billion stars. UFD galaxies are the least luminous galaxies. They are so faint that astronomers struggle to determine what stars belong to the galaxy and are not, in fact, background stars. UFDs are metal-poor and least chemically evolved (i.e., a few elements higher than hydrogen and helium). They tend to be dark matter dominated, which explains how they retain their shape even when they have very few stars. In the video, Katya explains galaxy evolution and mergers of various galaxies and what can be expected from the deployment of the Vera Rubin Telescope and the Roman Space Telescope.If you are interested in the evolution of galaxies and UFDs, this video will help you answer some of these questions. We hope you enjoy this video!iTelescope itelescope.netChapters0:00 Introduction2:59 Galaxy background information5:50 The 1920 great debate8:44 Edwin Hubble11:25 Hubble deep field12:25 Poll questions18:18 Small and Large Magellanic Clouds19:44 Sculptor and dwarf galaxy discovery22:36 Ultra-faint dwarf galaxies33:22 Galactic LEGOs — galaxy mergers39:35 Galaxy merger simulation41:22 What is a stellar halo? 44:03 Subaru Telescope & Hyper Supreme-Cam45:08 M9448:11 Looking ahead#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The First Stars in the Universe iTelescope Webinars 2023-02-21 | Guest Speaker: Sahil Hegde, Ph.D. candidate, UCLASummary: In this video, you will learn about population 3 stars. Sahil begins by describing the life cycle of a star. By observing the spectra of a star, astronomers can determine the star's composition and its temperature. The absorption lines in the spectra show the chemical composition of the star. First stars differ from later stars since they mostly comprise neutral hydrogen (75%) and a little helium (25%). Sahil explains why these first stars are huge compared to later stars and live for only a few million years. Scientists have been unable to observe the first stars directly for several reasons. So, astronomers are searching for them indirectly by searching them at different wavelengths.If you are interested in what are Population 3 stars and what happened to them, this video will help you answer some of these questions. We hope you enjoy this video!iTelescope itelescope.netChapters0:00 Introduction1:37 Stellar Overview5:53 Phase I of stellar evolution13:57 Phase II of stellar evolution14:49 Phase II of stellar evolution15:40 Phase IV of stellar evolution19:05 Observing stars22:04 Stellar evolution and HR diagram26:31 How first-generation are different from the stars we see now32:39 Phase I stellar evolution for first-generation stars37:11 Timeline of first-generation stars40:38 First-generation stars and black holes41:12 How do we observe the first stars?#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Watching a Red Supergiant Explode iTelescope Webinars 2023-02-18 | Guest Speaker: Wynn Jacobson-Galan, NSF Graduate Fellow, Ph.D. candidate, UC BerkeleySummary: In this video, you will learn about: the evolution of supergiant stars, what supernovae are, and the story of Supernova SN 2020TLF. Wynn provides a simple definition of a star “as a self-contained sphere of hot gas that is fusing its hot gas to make different hot gas.” Supernovae can be thought of as the endpoints of massive stars and compact stars. Stellar explosions can be very diverse, from collapsing massive stars to merging white dwarfs to merging neutron stars and a white dwarf that gobbles gas from a main sequence star. Wynn finally explains that he is a member of the Young Supernova Experiment (YSE) that surveys 1512 deg2 of the sky every 3 days to detect new supernovae. YSE detected SN 2020TLF in 2020, which is the first supernova for which astronomers had detected the activity of the progenitor star.If you are interested in the evolution of stars and supernovae, this video will help you elucidate their evolution. We hope you enjoy this video!iTelescope itelescope.netYoung supernova experiment https://yse.ucsc.eduAstronomers see death throes of giant star before violent explosionhttps://news.berkeley.edu/story_jump/astronomers-see-death-throes-of-giant-star-before-violent-explosion/Chapters0:00 Introduction3:25 What is a star?4:37 Stellar lifecycle 5:28 How stars create elements 15:48 Supernova ash17:24 What is a supernova?18:25 Stellar explosions are diverse22:40 Supernova observations26:21 Find the explosion32:05 Red supergiant stars35:15 Red sergeant research at UCB37:45 Important definitions 39:34 Observing very young supernovae41:54 Supernova 2020TFL50:07 What have we learned…summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
iTelescope introduction for members and welcome Utah Desert Remote Observatories iTelescope Webinars 2023-01-30 | Speakers: Dr. Christian Sasse, Astronomer-in-charge; Leigh Moore, Software Developer iTelescope; and Craig Stocks, Owner of Utah Desert Remote Observatories (UDRO).Summary: This is a two-part video; in part 1, the speakers describe iTelescope’s new imaging site in the desert of Utah. This is a follow-up video on the earlier announcement that iTelescope had partnered with UDRO and moved its telescopes from New Mexico Skies to UDRO. UDRO is now open to iTelescope members.In part 2 of the video, Christian and Leigh guide you through the iTelescope website (iTelescope - Leaders in Internet Astronomy since 2006) and how to navigate the iTelescope launchpad/dashboard (iTelescope.Net Launchpad V2). Dr. Sasse will walk you through how to image Comet C/2022 E3 (ZTF) using T14, one of the telescopes in UDRO. He also shows you how to use the iTelescope dashboard and planner to program your imaging sessions.This is a wonderful opportunity for new (and advanced) members to learn how to navigate the iTelescope website, the launchpad, and the planner and to take advantage of the opening of UDRO. We hope you enjoy this video! iTelescope iTelescope itelescope.netUtah Desert Remote Observatoryutahdesertremote.comAstroPixelProcessor astropixelprocessor.comChapters0:00 Introduction2:26 Craig Stark Utah Desert Remote Observatories21:49 iTelescope How to image a comet37:27 Comet images with AstroPixelProcessor40:33 Making a reservation with iTelescope43:36 How to download your data from iTelescope43:35 How to start a plan with iTelescope#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
What goes bump in the early universe? iTelescope Webinars 2023-01-21 | Guest Speaker: Dr. Deanna Hooper, University of Helsinki Summary: Are you interested in cosmology, the big bang, the beginning of time, inflation, etc. If you are curious about these topics, this talk will help you answer a lot of questions. In this talk, Dr. Hooper discusses how the Big Bang is not the beginning of the universe. The big bang is the model that sets time to zero. Right after the big bang, the universe experienced inflation which has made it very flat. All these concepts, and more, are explained in this video by Deanna. One amazing fact that she explains is that the human body is made up of 90% stardust and 10% the result of nucleosynthesis from the big bang. This is because all the hydrogen in the universe was created as part of nucleosynthesis after the big bang. All the other chemicals known were created as a result of the evolution of stars. iTelescope itelescope.netCup of Cosmology cupofcosmology.comChapters0:00 Introduction6:10 The Universe today7:44 How did we get here9:15 The first three minutes10:24 Inflation16:03 Flatness Problem19:07 Horizon Problem23:24 Particles form27:37 Four forces —1 picosecond34:14 20 picoseconds38:20 Simulation animation by David Weir39:42 Clumps in the soup42:20 Ten microseconds43:09 One second45:14 Annihilation46:48 Six seconds47:25 Nucleosynthesis49:17 Origins of the Periodic Table51:44 Three minutes54:45 How do we know what we know1:10:20 Unanswered questions1:11:02 The future1:12:43 Summary#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Major iTelescope Announcement – January 2023 iTelescope Webinars 2023-01-21 | Summary: After 17 years of partnership with New Mexico Skies, iTelescope has made the difficult decision to move all its telescopes from New Mexico to a new observatory in Utah, the Utah Desert Remote Observatory. In this short video, Christian Sasse explains why this decision was taken and shows some images of the new observatory.iTelescope itelescope.netUtah Desert Remote Observatory utahdesertremote.com#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Listening to Black Holes with Gravitational Waves iTelescope Webinars 2023-01-03 | Guest Speaker: Lisa Drummond, Ph.D. candidate, MITSummary: In this video, you will learn about how astronomers listen to black holes with gravitational waves. As a prelude to the talk, Lisa briefly discusses the theory of gravity, spacetime, general relativity, gravitational waves, and black holes. Lisa then shows us how it takes some disruption/interaction with spacetime to create gravitational waves. Her area of interest is the study of gravitational waves produced by the merger of two black holes, especially those involving extreme mass ratios. The frequency of gravitational waves converted into sound waves produces a cosmic ‘chirp.’ If you are interested in black holes and gravitational waves, this video will help you elucidate these concepts!iTelescope itelescope.netLIGO https://www.ligo.caltech.edu/page/what-are-gwChapters0:00 Introduction1:30 General Relativity3:20 Space Time6:35 Using gravitational waves to listen to the Universe7:48 How do gravitational waves distort mater?10:41 How to detect gravitational waves12:04 The fist detected gradational wave12:56 Black holes19:01 What if you shine a flashlight on a black hole?21:26 Anatomy of a black hole - a more complete picture22:30 Ways to observe black holes26:24 Objects that produce gradational waves28:33 What does not produce gradational waves?31:39 merging blackholes33:07 Gravitational wave chirp signal34:40 What do the gravitational waves look like when they merge.35:38 What type of black holes have we seen os far?44:10 Electromagnetic spectrum vs gravitational wave spectrum46:46 LISA next steps in gravitational wave detection48:02 SummaryiTelescope itelescope.net#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology #gravational waves
iTelescope for New and Advanced Members iTelescope Webinars 2022-12-19 | Instructors: Dr. Christian Sasse, Astronomer-in-charge, and Leigh Moore, Software Developer iTelescopeSummary: In this instructional video, Christian will guide you through the iTelescope website (iTelescope - Leaders in Internet Astronomy since 2006) and how to navigate the iTelescope launchpad/dashboard (iTelescope.Net Launchpad V2). As part of this instructional video, Dr. Sasse will walk you through how to take images using the T69 telescope, which has a one-shot color camera, and then explain how to process your images using Astro Pixel Processor (Astro Pixel Processor). Christian has made available the images he mentions in the video for you to follow here: dropbox.com/t/wzqUnb7qU5sshcSL. Dr. Sasse then shows you how to use the iTelescope planner, combined with information on the Telescopius website (telescopius.com), to help you plan your imaging session, both in terms of the best telescope to use and the best time to start imaging. This is a wonderful opportunity for new (and advanced) members to learn how to navigate the iTelescope website, the launchpad, and the planner and learn basic image processing. We hope you enjoy this video! Link to image data dropbox.com/t/wzqUnb7qU5sshcSLiTelescope itelescope.netAstropixel processor astropixelprocessor.com/free-30-day-trialChapters0:00 Introduction2:01 Launchpad interface explanation7:39 One-click imaging9:40 Astropixel processor overview15:35 How to plan for an image24:09 Planning an imaging session37:27 How to download your images38:20 Explanation of full moon happy hour41:20 Membership pricing and perks43:46 Webinar link#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Making New Solar Systems iTelescope Webinars 2022-12-12 | Guest Speaker: William Balmer, Ph.D. Student, Johns Hopkins UniversitySummary: In this video, you will learn about the theory of star and planet formation. You will also see some amazing time-lapse images of exoplanets revolving around their stars. William begins by discussing how our solar system evolved. He then talks about the evolution of exoplanets, i.e., planets outside the solar system orbiting other stars. William discusses the apparent correlation between stars with high metallic content and the number of planets revolving around such stars. Generally, the higher the star's metallicity, the greater the number of planets orbiting it. He further shows simulations used by astronomers to understand star and planet formations from Giant Molecular Clouds (GMC). If you are interested in the science of exoplanets and star formations, this video is a must-see!iTelescope itelescope.netSolar System Formation from JWST webb.nasa.gov/content/forScientists/faqSolarsystem.htmlChapters0:00 Introduction2:47 Our expectations16:15 Solar system formation: Theory35:34 Solar system formation: observations54:57 Latest from JWST#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Almost touching stars - Astronomical Spectroscopy iTelescope Webinars 2022-12-05 | Guest Speaker: Tom Field, RSpec-Astro.com Summary: Learn how to do science with your own equipment. In this talk, Tom explains how to do spectroscopy with relatively simple star analyzers (diffraction grating) and what you can do with star spectra. As he describes in the video, hidden inside the rainbow of a star color is the biography of the life of that star, where the gaps inside the spectra are the star’s chemical fingerprints. Tom shows that to do science with star spectra, one has to create the light curve to capture the dips (absorption lines) in the light curve at different wavelengths, which, when mapped to the spectrum of different chemicals, the chemistry of the star can be analyzed. This is an exciting field to explore and to extend your astronomy interest.iTelescope itelescope.netRSpec Website rspec-astro.comRSpec Google user group groups.io/g/RSpec-AstronomyChapters0:00 Introduction7:40 Example spectra8:16 Star Analyzer and equipment needed11:02 Chemical fingerprints19:45 Overview of diffraction20:16 Spectroscopic analysis23:48 Great astronomers25:53 What can you do with a Star Analyzer?29:40 Emission and absorption Spectrum30:49 From raw photons to qualitative data33:05 RSpec software38:16 Spectrum beyond stars38:52 High-resolution Slit Devices42:05 Planet Spectrum44:01 Comet Spectrum46:24 Flash Spectrum46:52 Doppler shift and Spectrum48:03 Type 1a supernova52:41 Blackhole Spectrum57:30 Stellar rotation59:31 Detailed how to get started#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology#spectroscopy
Advanced Imaging of Rare Target Cederblad 211 iTelescope Webinars 2022-12-02 | Instructor: Dr. Christian Sasse, Astronomer-in-charge of iTelescopeSummary: In this instructional video, you will learn how to process the very rare Cederblad 211 (aka R-Aqr) binary system using Astro Pixel Processor (Astro Pixel Processor) and Topaz Sharpen AI (Sharpen AI). To help you follow along with this instructional video, Dr. Sasse has made available the stacked images taken, over several nights, with a 24-inch telescope on the iTelescope network. Christian also shares information on this binary system which consists of a red giant star and a white dwarf in a symbiotic relationship. Additional information on this interesting binary system can be found in the following links:phys.org/news/2018-12-actual-image-white-dwarf-material.html, skyandtelescope.org/sky-and-telescope-magazine/the-drama-ridden-couple-of-r-aquarii, aavso.org/vsots_raqr.In the video, Dr. Sasse shows you how to process the downloaded stacked images taken in both broad-band and narrow-band filters (LRGB, Ha, and OIII), to create a high-resolution final image compared to what the Very Large Telescope (VLT) was able to capture. He has made available 2-hour images each in LRGB filters, plus close to 5-hour images each in OIII and Ha. You can download the stacked images here:dropbox.com/t/8TT6x55kyajyDoDDThis is a wonderful opportunity to learn image processing while doing, and learning enough about the science behind this interesting binary system to pique your interest for more. We hope you enjoy it! Chapters0:00 Introduction 8:57 Processing overview with Astro Pixel Processor (APP)26:32 Sharpening with Topaz AI28:52 Taking the image back to APP32:01 Adjusting individual channels35:16 Fining a good stretch point36:58 Taking the back to APP39:40 Comparing before and after images43:05 Wrap-upiTelescope itelescope.netDownload image data for processing here:dropbox.com/t/8TT6x55kyajyDoDDActual image of a white dwarf feeding on material from a larger red giant 650 light years from Earth phys.org/news/2018-12-actual-image-white-dwarf-material.htmlTHE DRAMA-RIDDEN COUPLE OF R AQUARII. skyandtelescope.org/sky-and-telescope-magazine/the-drama-ridden-couple-of-r-aquariiAAVSO R Aqr. aavso.org/vsots_raqrStellarium Download Link stellarium.orgAstroPixel Processor free 30 day trial download astropixelprocessor.com/product/astro-pixel-processor-30-day-trial-licenseTopaz sharpen AI free download topazlabs.com/sharpen-ai#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Asteriod Science with Robotic Telescopes iTelescope Webinars 2022-12-01 | Summary: In this video, Arushi discusses how she uses robotic telescopes, python, and open datasets, to perform asteroid science. This young scientist discusses how she detects unknown asteroids, calculates their angular momentum, calculates their apparent magnitude, determines their rotation period, and determines the orbital period for binary systems. To achieve this Arushi uses robotic telescopes worldwide, including iTelescope, the Faulkes Telescope Project, and even the NEOSSat, among others. In the video, Arushi demonstrates how she could measure the brightness of the asteroid Didymos, pre and post-DART mission impact. Feel inspired by the accomplishments of this young scientist!iTelescope itelescope.netChapters0:00 Introduction3:13 Asteroids and minor planets5:12 Overview of research7:21 Creating observations plans10:23 Using Python24:42 DART mission26:09 Differential photometry29:08 Generating Didymos light curves29:35 Appling changing phase angle and offsets32:06 Determining the rotational period35:29 Determining orbital period40:40 DART/Draco image for fun41:39 Wrap-up#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
Direct Imaging of Exoplanets iTelescope Webinars 2022-12-01 | Guest Speaker: Briley Lewis, UCLASummary: In this video, Briley Lewis discusses imaging of exoplanets, i.e., planets outside our solar system. She explains how astronomers attempt direct imaging of exoplanets instead of discovering exoplanets using light changes during their transit in front of the star or measuring radial velocities. Although requiring large telescopes with adaptive optics, direct imaging allows astronomers to capture the orbits of exoplanets around their star. Astronomers use adaptive optics and coronagraphs (a mask for the bright star) to capture much sharper images of star systems and directly observe exoplanets. Learn about all this in this video.iTelescope itelescope.netChapters0:00 Introduction8:14 How do you image exoplanets?14:57 Limits of exoplanet imaging18:38 What has been found and what telescopes are used42:30 Looking into the future#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
The Known Unknowns of the Universe - Science Round Table iTelescope Webinars 2022-12-01 | Guest Speaker: Dr. Deanna Hooper, University of Helsinki Summary: In this talk, Dr. Hopper discusses dark matter and dark energy and how cosmologists figured out that there had to be both dark matter and dark energy to explain what astronomers were observing. In a clear and simple manner, Dr. Hopper explains these complex concepts so that anyone can understand them. Cosmologists utilize the Cosmic Microwave Background (CMB) to determine the amount of regular matter, dark matter, and dark energy in the universe. They also use galaxy rotation curves and gravitational lensing to deduct the existence of dark matter and dark energy. This is a wonderful talk about helping you understand these concepts.iTelescope itelescope.netChapters 0:00 Introduction3:17 Dark Matter past6:55 Dark Energy past13:53 What we know today23:35 Dark Matter evidence30:10 Dark Matter what we know35:02 Dark Energy evidence40:05 Darak energy what we know46:08 What we hope to learn52:43 Summary and Q & A#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
StarAid - Easy Polar Alignment- without Polaris! iTelescope Webinars 2022-11-20 | Guest Speaker: Hendrik BeijemanSummary: Learn how StarAid allows one to do polar alignment without a direct view of Polaris. In the video, Hendrik presents the steps to perform proper polar alignment using StarAid. To do astrophotography or properly track the stars, you must have accurate polar alignment. Hendrik shows you how StarAid allows you to do just that in a few simple steps. In the second part of the video, Hendrik discusses the proper focal lengths for guide scopes.Chapters0:00 Introduction6:23 StarAid demo15:07 Guiding and Polar Alignment18:01 Guiding equipment with StarAidStarAid staraid.aiiTelescope itelescope.net#iTelescope #astrophotography #deepsky #astro #astronomy #cosmology
