Achernar
Achernar, Alpha Eridani (α Eri), is a class B hydrogen-fusing dwarf located in the constellation Eridanus. Its estimated luminosity is 3,150 times that of the… Read More »Achernar
Alcor
Alcor is a double star in the constellation Ursa Major. It is the fainter companion to Mizar, the middle star in the handle of the… Read More »Alcor
Mizar
Mizar, Zeta Ursae Majoris (ζ UMa), is a quadruple star system in Ursa Major. It has a combined apparent magnitude of 2.04 and lies at… Read More »Mizar
Alkaid
Alkaid, Eta Ursae Majoris (η UMa) is a blue main sequence star with an apparent magnitude of 1.86, located at a distance of 103.9 light… Read More »Alkaid
Merak
Merak, Beta Ursae Majoris (β UMa) is a blue-white subgiant star in the constellation Ursa Major. It is one of the four bright stars that… Read More »Merak
Dubhe
Dubhe, Alpha Ursae Majoris (α UMa) is a spectroscopic binary star with an apparent magnitude of 1.79, located at an approximate distance of 123 light… Read More »Dubhe
Megrez
Megrez, Delta Ursae Majoris (δ UMa), is the faintest of the seven stars that form the Big Dipper asterism. It is a third magnitude star… Read More »Megrez