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WR 102 is a Wolf–Rayet star in the constellation Sagittarius, an extremely rare star on the WO oxygen sequence. It is a luminous and very hot star, highly evolved and close to exploding as a supernova.
WR 102c is surrounded by a shell of nebulosity which contains dust made even hotter than the star itself by intense radiation. The nebula also includes nearly 1 M ☉ of molecular hydrogen and around 10 M ☉ of ionised hydrogen, all expelled from the star. [4] There is a suggestion that WR 102c may be a binary star.
Star name Effective Temperature ()Mass (M ☉) Luminosity (L ☉) Spectral type Distance (light-years)Ref. WR 102: 200,000 16.1 380,000 WO2: 8,610 [1] [2] [3]WR 142: 200,000 28.6 912,000
All of the very hottest non-degenerate stars (the hottest few) are Wolf–Rayet stars, the hottest of which being WR 102, which seems to be as hot as 210,000 K, followed by WR 142 which is around 200,000 K in temperature. LMC195-1, located in the Large Magellanic Cloud, should have a similar temperature, but at the moment this temperature is ...
WR 102ea is a Wolf–Rayet star in the Sagittarius constellation. It is the third most luminous star in the Quintuplet cluster after WR 102hb . With a luminosity of 2,500,000 times solar , it is also one of the most luminous stars known.
NGC 3603-A1 (WR 43a/HD 97950A1) 24,800: 2: WN6h+WN6h: 11.18: NGC 3603-B (WR 43b/HD 97950B) 24,800: 1: WN6h: 11.33: NGC 3603-C (WR 43c/HD 97950C) 24,800: 1: WN6h: 11.89: HD 97950 (WR 43) 25,000: 1: WR: 9.03: It is the central core of a super star cluster within the NGC 3603 H II region (similar to R136 within the Tarantula Nebula). Arches-F1 (WR ...
WR 142 is a Wolf-Rayet star in the constellation Cygnus, an extremely rare star on the WO oxygen sequence. It is a luminous and very hot star, highly evolved and close to exploding as a supernova. It is a luminous and very hot star, highly evolved and close to exploding as a supernova.
Narrowband infrared observations of several spectral features around 2 μm showed that WR 102ka was a Wolf Rayet star with a likely classification of WN10. [7] It was also proposed as a possible luminous blue variable. [8] The Spitzer Space Telescope observed WR 102ka at wavelengths of 3.6 μm, 8 μm, and 24 μm on April 20, 2005. These ...