Worlds of David Darling
Encyclopedia of Science
   
Home > Encyclopedia of Science

Avior (Epsilon Carinae)





Epsilon Carinae
Artistic rendering of Avior binary system (Epsilon Carinae)
Image source: Wikipedia

The third brightest star in the constellation Carina, a spectroscopic binary consisting of a main sequence B star and a giant K star, separated by just 0.02". There is some evidence that the components eclipse each other, producing a slight drop in brightness every 2.2 years; if so, this suggests a separation distance of about 4 AU – less than the distance of Jupiter from the Sun, but too far apart for mass transfer to take place.


visual magnitude 1.95 (combined);
(~2.4/~3.1)
absolute magnitude -4.58
spectral type K3III + B2V
distance 630 60 light-years
(190 20 pc)
mass 4.6/16 Msun
luminosity 6,000/~11,000 Lsun
position R.A. 08h 22m 30.8s,
Dec. -59 30' 35"
other designations HR 3307, CD-591032,
HD 71129, SAO 235932,
FK5 315, HIP 410372,
GC 11463


Related category

   • NOTABLE STARS