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Cygnus OB2-12

This blue supergiant is the brightest star in an association of many other blue and bright stars and one of the brightest stars known. It shows some attributes of an LBV. The giant has a high mass loss rate and is hidden behind thick layers of dust. Therefore it seems little impressive to us.

Constellation: Cygnus
Age: 6.43 million years
Distance: 5500 light-years
Spectral class: B5e
Visual magnitude: 11.4
Luminosity: 6 million * Sun
Mass: 92 * Sun

Back: List of big and giant stars part 2

01/09/2007

     Cyg OB2-12
The Cygnus OB2-association.
Photo: ESO Online Digitized Sky Survey
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