white supergiant

Science Dictionary
white supergiant  
A rare type of extremely bright supergiant with surface temperature of around 10,000°K. Deneb, one of the brightest stars in the Milky Way, is a white supergiant; it has luminosity approximately 60,000 times that of the Sun.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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