NGC 6822-WR 12

NGC 6822 WR-12
Observation data
Epoch J2000      Equinox J2000
Constellation Sagittarius
Right ascension 19h 45m 13.5s[1]
Declination −14° 45′ 12.9″[1]
Apparent magnitude (V) 18.96[2]
Characteristics
Evolutionary stage Wolf-Rayet
Spectral type WN4[3]
U−B color index -0.54[1]
B−V color index -0.17[1]
Astrometry
Distance472,000[4] pc
Absolute magnitude (MV)−5.41[3]
Details
Mass36[3] M☉
Radius3.77[3] R☉
Luminosity1,288,000[3] L☉
Temperature100,000[3] K
Other designations
LGGS J194513.50-144512.9
Database references
SIMBADdata

NGC 6822-WR 12 is a WN-type Wolf-Rayet star located in the galaxy NGC 6822, about 1.54 million light years away[4] in the constellation of Sagittarius. NGC 6822-WR 12 was the first Wolf-Rayet star to be discovered in the galaxy,[5] and is one of only four known in the galaxy.[6]

  1. ^ a b c d Cite error: The named reference massey was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference massey2007 was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference abbott was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference dimitrova was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference westerlund was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference neugent2019 was invoked but never defined (see the help page).