Astrophysics (index)about

O5 spectral class

(type of star with about 50 times the mass of the Sun)

The O5 spectral class (O5) is a subtype of O-type star, specifically, a spectral class for stars of about 50 solar masses. They burn up their hydrogen in about a million years. Characteristics:

45000Ksurface temperature
-5.7absolute magnitude(visual)
790,000bolometric luminosity(solar)
3,000,000 yearslifetime
.00001%abundance(all O stars)

(star type,spectral type)