Westerhout 49-2

Westerhout 49-2
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 10m 21.858s[1]
Declination 09° 05′ 02.53″[1]
Characteristics
Spectral type O2-3.5If*[2]
Astrometry
Distance36,200 ly
(11,100[2] pc)
Details[2]
Mass130 – 370 M☉
Radius55.29[a] R☉
Luminosity4,365,000 L☉
Temperature35,500 K
Other designations
TIC 202340617, 2MASS J19102185+0905025
Database references
SIMBADdata

Westerhout 49-2 (W49-2) is a very massive and luminous star in the H II region Westerhout 49. At a mass of 250 solar masses (although with significant uncertainty) and a luminosity of over 4 million L☉, it is one of the most massive and most luminous known stars.[2]

  1. ^ a b Cite error: The named reference 2mass was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference wu was invoked but never defined (see the help page).


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