WR 93b
Wolf-Rayet star in the constellation of Cygnus / From Wikipedia, the free encyclopedia
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WR 93b is a Wolf-Rayet star in the constellation Scorpius, an extremely rare star on the WO oxygen sequence. It appears near NGC 6357 in the tail of the scorpion.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Scorpius |
Right ascension | 17h 32m 03.308s[1] |
Declination | −35° 04′ 32.62″[1] |
Apparent magnitude (V) | 15.2[2] |
Characteristics | |
Evolutionary stage | Wolf-Rayet star |
Spectral type | WO3[3] |
Apparent magnitude (B) | 16.9[4] |
Apparent magnitude (R) | 14.4[4] |
Apparent magnitude (J) | 11.331[4] |
Apparent magnitude (K) | 10.17[5] |
Astrometry | |
Proper motion (μ) | RA: −0.642±0.032[1] mas/yr Dec.: −2.1055±0.024[1] mas/yr |
Parallax (π) | 0.4298 ± 0.0288 mas[1] |
Distance | 7,600 ± 500 ly (2,300 ± 200 pc) |
Details | |
Mass | 8.1+1.9 −1.2[6] M☉ |
Radius | 0.44[6] R☉ |
Luminosity | 110,000+53,000 −30,000[6] L☉ |
Temperature | 160,000[3] K |
Other designations | |
Database references | |
SIMBAD | data |
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