|System:||HIP 89535 - All bodies|
|Distance to Sol:||280.92 ly|
|Spectral Class:||W - Not Scoopable|
|Luminosity Class:||I - Supergiant|
|Age:||12,410 Million years|
|Surface Temperature:||186,858 K|
Wolf-Rayet class stars are massive stars that are nearing the end of their life cycle and have moved out of their hydrogen-burning phase. They were once over 20 solar masses but now shed considerable amounts of material through solar wind. Their surface temperature can reach 200,000 K, so they appear a brilliant blue.
Supergiants are among the most massive and most luminous stars. They occupy the top region of the Hertzsprung–Russell diagram with bolometric absolute magnitudes between −5 and −12 and temperatures from about 3,500K to over 20,000K.
Supergiants have masses from 8 to 12 times the Sun (M☉) upwards, and luminosities from about 10,000 to over a million times the Sun (L☉). They vary greatly in radius, usually from 30 to 500, or even in excess of 1,000 solar radii (R☉). They are massive enough to begin core helium burning gently before the core becomes degenerate, without a flash, and without the strong dredge-ups that lower-mass stars experience. They go on to successively ignite heavier elements, usually all the way to iron. Also because of their high masses they are destined to explode as supernovae.