Epsilon Canis Majoris

Epsilon Canis Majoris (ε Canis Majoris/ε CMa) is the second the most brilliant star of the Constellation of the Large Dog, and one of the more brilliant of the night sky. Its traditional name is Adara , or Adhara . It comes from Arabic عذارى `will aðāra' , “the virgins”.

Adhara is a binary star, located at approximately 431 light-years of the Solar system. The principal star is a blue Géante having a Magnitude connect of +1,50 and belongs to the spectral Classification B2. It has a temperature of surface of 25000 K and emits a radiation 20000 times higher than that of the Sun. His/her companion, magnitude +7,5, is located at 7,5 seconds of arc, but it can be observed only by the very large Télescope S, the principal star of the system being approximately 250 times more luminous.

See too

List of most brilliant stars

External bond

Random links: