Alioth (Epsilon Ursae Majoris)
Alioth, Epsilon Ursae Majoris (ε UMa), is the brightest star in the constellation Ursa Major (the Great Bear). It has an apparent magnitude of 1.77 and… Read More »Alioth (Epsilon Ursae Majoris)
Ursa Major Stars
Alkaphrah (Kappa Ursae Majoris)
Alkaphrah, Kappa Ursae Majoris A (κ UMa A), is the primary component in a binary star system located approximately 360 light-years away in the constellation… Read More »Alkaphrah (Kappa Ursae Majoris)
Talitha (Iota Ursae Majoris)
Talitha, Iota Ursae Majoris Aa (ι UMa Aa), is the primary component in a multiple star system located 47.3 light-years away in the constellation Ursa… Read More »Talitha (Iota Ursae Majoris)
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
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
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