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- Classical Astronomy Flashcards | Quizlet
In 1928, the International Astronomical Union established 88 official constellations with clearly defined boundaries -A constellation now represents not a group of stars but an area of the sky -Any star within the region belongs to one and only one constellation -Alpheratz belongs to Andromeda
- Alpheratz belongs to Andromeda, but is part of the Great Square
Bottom line: Alpheratz appears to our eyes as a single star but it is actually a close binary star system Many stargazers use it to locate the Andromeda galaxy
- Alpheratz - University of Illinois Urbana-Champaign
Mid-second magnitude (2 06) Alpheratz, the Alpha star, connects Andromeda (the Lady) with Pegasus, the Flying Horse that carried Perseus to Andromeda's rescue As such, Alpheratz is also the northeastern star of the of Pegasus
- Andromeda and Pegasus - Young Stargazers
These two constellations belong together, because they share a star, the one marked Alpheratz on the map below This is the top left-hand corner of the Square of Pegasus You might expect the Square to be a bit squarer than it really is, but we have to make do with the stars as they are
- Great Square of Pegasus - Constellation Guide
Stars The four stars that form the Great Square of Pegasus are all second magnitude and appear similar in brightness Alpheratz, Alpha Andromedae, is the brightest of the four, with an apparent magnitude of 2 06 The star is also known by the name Sirrah
- Andromeda Constellation: Stars, Myths Galactic Mysteries
Andromeda contains several notable stars that form its distinctive shape in the night sky: Alpheratz (Alpha Andromedae): The brigh test star in the constellation (magnitude 2 07) A binary star that appears as part of the Great Square of Pegasus Spectral type: B8 subgiant, located approximately 97 light-years away Mirach (Beta Andromedae):
- Andromeda - judy-volker. com
Alpheratz (α And) is the brightest star in the constellation Until the IAU explicitly defined the boundaries of the constellations (adopted in 1928, published in 1930), Alpheratz was considered a star of both the constellation Andromeda (as α And) and the constellation Pegasus (as δ Peg)
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