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Star Magnitude (Brightness) Explained

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: https://bit.ly/LearntheSky-UrsaMajorC... ▶ Polaris North Star: http://bit.ly/LearntheSky-PolarisNort... ▶ Canis Major Constellation: http://bit.ly/LearntheSky-CanisMajorC... ▶ Lyra Constellation: http://bit.ly/LearntheSky-LyraHarpCon... Check it Out ▶ Download FREE Stargazing Guide: https://www.learnthesky.com/stargazin... Playlists ▶ Stargazing Basics: http://bit.ly/LearntheSky-StargazingB... ▶ Zodiacal Constellations: http://bit.ly/LearntheSky-ZodiacalCon... ▶ Circumpolar Constellations: http://bit.ly/LearntheSky-Circumpolar ▶ Winter Constellations: http://bit.ly/LearntheSky-WinterConst... ▶ Spring Constellations: http://bit.ly/LearntheSky-SpringConst... ▶ Summer Constellations: http://bit.ly/LearntheSky-SummerConst... ▶ Autumn Constellations: http://bit.ly/LearntheSky-AutumnConst... ▶ Stars: http://bit.ly/LearntheSky-Stars ▶ Planets: http://bit.ly/LearntheSky-Planets ▶ Celestial Objects: http://bit.ly/LearntheSky-CelestialOb... ▶ Versus Videos: http://bit.ly/LearntheSky-VersusVideos ▶ Celestial Events: http://bit.ly/LearntheSky-CelestialEv... ▶ Citizen Science: http://bit.ly/LearntheSky-CitizenScience Photo Attributions ▶Hipparchus: By Raphael - Marie-Lan Nguyen, Public Domain, https://commons.wikimedia.org/w/index... ▶Ptolemy: By User: Stahlkocher - Own work, Public Domain, https://commons.wikimedia.org/w/index... ▶Galileo: By Justus Sustermans - http://www.nmm.ac.uk/mag/pages/mnuExp... by ▶Adrian Pingstone in December 2003, Public Domain, https://commons.wikimedia.org/w/index... ▶Norman Robert Pogson: By Unknown - Popular Astronomy 1913, Public Domain, https://commons.wikimedia.org/w/index... ▶Hubble Deep Field: By NASA, ESA, S. Beckwith (STScI) and the HUDF Team - http://hubblesite.org/newscenter/arch... bright galaxy is UDF 423 with an apparent magnitude of 20., Public Domain, https://commons.wikimedia.org/w/index... Support this Channel ▶ Online Classes: https://www.learnthesky.com/store Never Miss a Video ▶ Subscribe to my Channel: https://www.youtube.com/c/learnthesky... Connect ▶ Website: https://www.learnthesky.com/ ▶ Instagram:   / learnthesky   ▶ Facebook:   / learnthesky   ​ ▶ Business Enquiries: [email protected] #learnthesky #stargazing #constellations #stars #keeplookingup