Uploaded December 2022 | Updated September 2026, 2 weeks ago
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.net
RSpec Website rspec-astro.com
RSpec Google user group groups.io/g/RSpec-Astronomy
Chapters
0:00 Introduction
7:40 Example spectra
8:16 Star Analyzer and equipment needed
11:02 Chemical fingerprints
19:45 Overview of diffraction
20:16 Spectroscopic analysis
23:48 Great astronomers
25:53 What can you do with a Star Analyzer?
29:40 Emission and absorption Spectrum
30:49 From raw photons to qualitative data
33:05 RSpec software
38:16 Spectrum beyond stars
38:52 High-resolution Slit Devices
42:05 Planet Spectrum
44:01 Comet Spectrum
46:24 Flash Spectrum
46:52 Doppler shift and Spectrum
48:03 Type 1a supernova
52:41 Blackhole Spectrum
57:30 Stellar rotation
59:31 Detailed how to get started
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
#spectroscopy
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.net
RSpec Website rspec-astro.com
RSpec Google user group groups.io/g/RSpec-Astronomy
Chapters
0:00 Introduction
7:40 Example spectra
8:16 Star Analyzer and equipment needed
11:02 Chemical fingerprints
19:45 Overview of diffraction
20:16 Spectroscopic analysis
23:48 Great astronomers
25:53 What can you do with a Star Analyzer?
29:40 Emission and absorption Spectrum
30:49 From raw photons to qualitative data
33:05 RSpec software
38:16 Spectrum beyond stars
38:52 High-resolution Slit Devices
42:05 Planet Spectrum
44:01 Comet Spectrum
46:24 Flash Spectrum
46:52 Doppler shift and Spectrum
48:03 Type 1a supernova
52:41 Blackhole Spectrum
57:30 Stellar rotation
59:31 Detailed how to get started
#iTelescope
#astrophotography
#deepsky
#astro
#astronomy
#cosmology
#spectroscopy
