Dubhe (Alpha Ursae Majoris)
Dubhe, Alpha Ursae Majoris (α UMa), is the primary component in a multiple star system located at an approximate distance of 123 light years from… Read More »Dubhe (Alpha Ursae Majoris)
Messier 51
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
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