WR 102ka
Star in the constellation Sagittarius / From Wikipedia, the free encyclopedia
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WR 102ka, also known as the Peony star, is a slash star that is one of several candidates for the most luminous-known star in the Milky Way.[5]
Quick Facts Observation data Epoch J2000. Equinox J2000., Constellation ...
The "Peony Nebula," as discovered by NASA's Spitzer Space Telescope. This three-color infrared composite shows 3.6-micrometre light in blue, 8-micrometre light in green, and 24-micrometre light in red. The Peony nebula is the reddish cloud of dust in and around the white circle, surrounding the Peony nebular star. | |
Observation data Epoch J2000. Equinox J2000. | |
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Constellation | Sagittarius |
Right ascension | 17h 46m 18.12s[1] |
Declination | −29° 01′ 36.5″[1] |
Characteristics | |
Evolutionary stage | Slash star |
Spectral type | Ofpe/WN9[2] |
Apparent magnitude (J) | 13.0[1] |
Apparent magnitude (H) | 10.3[1] |
Apparent magnitude (K) | 8.8[1] |
J−H color index | 2.7[1] |
J−K color index | 4.2[1] |
Variable type | |
Astrometry | |
Distance | 26,000[2] ly (8,000[2] pc) |
Details | |
Mass | ~100[3] M☉ |
Radius | 92[2] R☉ |
Luminosity | 2,950,000[3] L☉ |
Temperature | 25,100[2][3] K |
Age | ~2[3] Myr |
Other designations | |
Database references | |
SIMBAD | data |
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