Acrux
Acrux, Alpha Crucis (α Cru), is a multiple star system located in the constellation Crux. It is the brightest of the stars that form the… Read More »Acrux
Multiple Star Systems
Ascella
Ascella, Zeta Sagittarii (ζ Sgr), is a multiple star system located in the constellation Sagittarius. It is the constellation’s third brightest star, after Kaus Australis… Read More »Ascella
Rigel
Rigel, Beta Orionis (β Ori), is a blue-white supergiant star located in the constellation Orion, the Hunter. With an apparent magnitude of 0.13, it is… Read More »Rigel
Castor
Castor, Alpha Geminorum (α Gem), is a sextuple star system located in the constellation Gemini. It is composed of three binary pairs designated Castor A,… Read More »Castor
Meissa
Meissa, Lambda Orionis (λ Ori), is the star that marks the head of Orion, the Hunter. It is a multiple star system with a combined… Read More »Meissa
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