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
Navigational Stars
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
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
Alioth
Alioth, Epsilon Ursae Majoris (ε UMa), is the brightest of the seven stars of the Big Dipper and the brightest star in the constellation Ursa… Read More »Alioth
Polaris
Polaris, Alpha Ursae Minoris (α UMi), commonly known as the North Star, is the closest relatively bright star to the north celestial pole. It lies… Read More »Polaris
Sirius
Sirius, Alpha Canis Majoris (α CMa), is the brightest star in the night sky and one of the nearest star systems to Earth. It has… Read More »Sirius
Alnilam
Alnilam, Epsilon Orionis (ε Ori), is a bright blue supergiant located at a distance of 1,975.8 light years from Earth in the direction of Orion… Read More »Alnilam