Merak vs Alkaid
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Merak
Merak, designated Beta Ursae Majoris, is a white main-sequence star of spectral type A1IV–V located approximately 79 light-years from the Sun in the constellation Ursa Major. It is one of the seven stars that form the Big Dipper asterism and, together with Dubhe (Alpha Ursae Majoris), serves as one of the two 'pointer stars' used to locate Polaris—the line drawn from Merak through Dubhe extends to...
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Alkaid
Alkaid, designated Eta Ursae Majoris, is a blue-white main-sequence star located at the tip of the handle of the Big Dipper in Ursa Major. It is approximately 104 light-years from Earth and has an apparent magnitude of around 1.86, making it one of the brightest stars in the asterism. Unlike the other six Dipper stars, Alkaid is not a member of the Ursa Major Moving Group. With a surface temperatu...
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