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WR 136

This Wolf-Rayet star once was a red supergiant with 30 solar masses, which 250 000 years ago blew its hull into space. Now, during the Wolf-Rayet phase, the hull is overtaken by the strong stellar wind, heats up and starts to glow again. The star is losing mass very quickly. In maybe 100 000 years WR 136 will explode as supernova, if still massive enough.

Constellation: Cygnus
Age: 4.5 million years
Distance: 4700 light-years
Spectral class: WN6
Visual magnitude: 7.48
Mass: 10 * Sun

Back: List of big and giant stars part 2 		    WR 136
WR 136 with its Nebula NGC 6888 (Crescent Nebula).
Photo: T.A. Rector (NRAO/AUI/NSF and NOAO/AURA/NSF)
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