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Alpha Boötis

Arcturus

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Arcturus star,Alpha Boötis

Arcturus, Alpha Boötis (α Boo), is a giant star of the spectral type K0 III located in the northern constellation Boötes. It is the brightest… Read More »Arcturus

Alioth

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Alioth star,Epsilon Ursae Majoris

Alioth, Epsilon Ursae Majoris (ε UMa), is the brightest of the seven stars of the Big Dipper and the brightest star in the constellation Ursa… Read More »Alioth