Alkaid
Star
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Alkaid, also called Eta Ursae Majoris, is a star in the constellation of Ursa Major. It is the most eastern star in the Big Dipper asterism. However, unlike most stars of the Big Dipper, it is not a member of the Ursa Major moving group. Wikipedia
Spectral type: B3 V
Magnitude: 1.84
Surface temperature: 16,820 K
Constellation: Ursa Major
Luminosity: 1,350 L☉
Mass: 1.213 × 10^31 kg (6.1 M☉)
Radius: 1.4698 million mi