Learn the Sky | Star Magnitude (Brightness) Explained @learnthesky | Uploaded February 2021 | Updated October 2024, 1 hour ago.
A basic stargazing principle is that of stellar magnitude. Learn how astronomers classify stars based upon their brightness and explore a brief history of how this system came to be.

Chapters:
0:00 - Intro
1:26 - Brief History of Star Magnitude
4:07 - Apparent versus Absolute Magnitude
6:11 - Examples Star Magnitude
8:41 - Limitations of the Magnitude System
9:54 - How far the Hubble SpaceTelescope see?

Links and Resources mentioned in this video
▶ Ursa Major Constellation: bit.ly/LearntheSky-UrsaMajorConstellation
▶ Polaris North Star: bit.ly/LearntheSky-PolarisNorthStar
▶ Canis Major Constellation: bit.ly/LearntheSky-CanisMajorConstellation
▶ Lyra Constellation: bit.ly/LearntheSky-LyraHarpConstellation

Check it Out
▶ Download FREE Stargazing Guide: learnthesky.com/stargazing_starter_guide

Playlists
▶ Stargazing Basics: bit.ly/LearntheSky-StargazingBasics
▶ Zodiacal Constellations: bit.ly/LearntheSky-ZodiacalConstellations
▶ Circumpolar Constellations: bit.ly/LearntheSky-Circumpolar
▶ Winter Constellations: bit.ly/LearntheSky-WinterConstellations
▶ Spring Constellations: bit.ly/LearntheSky-SpringConstellations
▶ Summer Constellations: bit.ly/LearntheSky-SummerConstellations
▶ Autumn Constellations: bit.ly/LearntheSky-AutumnConstellations
▶ Stars: bit.ly/LearntheSky-Stars
▶ Planets: bit.ly/LearntheSky-Planets
▶ Celestial Objects: bit.ly/LearntheSky-CelestialObjects
▶ Versus Videos: bit.ly/LearntheSky-VersusVideos
▶ Celestial Events: bit.ly/LearntheSky-CelestialEvents
▶ Citizen Science: bit.ly/LearntheSky-CitizenScience

Photo Attributions
▶Hipparchus: By Raphael - Marie-Lan Nguyen, Public Domain, commons.wikimedia.org/w/index.php?curid=26620621
▶Ptolemy: By User: Stahlkocher - Own work, Public Domain, commons.wikimedia.org/w/index.php?curid=67098
▶Galileo: By Justus Sustermans - nmm.ac.uk/mag/pages/mnuExplore/ViewLargeImage.cfm?ID=BHC2700prepared by ▶Adrian Pingstone in December 2003, Public Domain, commons.wikimedia.org/w/index.php?curid=23858
▶Norman Robert Pogson: By Unknown - Popular Astronomy 1913, Public Domain, commons.wikimedia.org/w/index.php?curid=38736469
▶Hubble Deep Field: By NASA, ESA, S. Beckwith (STScI) and the HUDF Team - hubblesite.org/newscenter/archive/releases/2007/21/image/aThe bright galaxy is UDF 423 with an apparent magnitude of 20., Public Domain, commons.wikimedia.org/w/index.php?curid=2149279

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