Dubhe vs Alkaid
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Dubhe
Dubhe, designated Alpha Ursae Majoris, is a binary star system located approximately 124 light-years from the Sun in the constellation Ursa Major. The primary component is an orange giant of spectral type K0III, while the companion is a main-sequence star of similar type in a wide orbit. Dubhe is one of the seven stars that form the Big Dipper asterism and, together with Merak (Beta Ursae Majoris)...
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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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