Star Magnitude (Brightness) Explained

Опубликовано: 17 Июнь 2026
на канале: Learn the Sky
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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.

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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...

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Playlists
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▶ Zodiacal Constellations: http://bit.ly/LearntheSky-ZodiacalCon...
▶ Circumpolar Constellations: http://bit.ly/LearntheSky-Circumpolar
▶ Winter Constellations: http://bit.ly/LearntheSky-WinterConst...
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▶ Summer Constellations: http://bit.ly/LearntheSky-SummerConst...
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▶ 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...

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