Westerhout 49-2
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 10m 21.858s |
| Declination | 09° 05′ 02.53″ |
| Characteristics | |
| Spectral type | O2-3.5If* |
| Astrometry | |
| Distance | 36,200 ly (11,100 pc) |
| Details | |
| Mass | 130 – 370 M☉ |
| Radius | 55.29 R☉ |
| Luminosity | 4,365,000 L☉ |
| Temperature | 35,500 K |
| Other designations | |
| TIC 202340617, 2MASS J19102185+0905025 | |
| Database references | |
| SIMBAD | data |
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.