Emission nebula | |
---|---|
H II region | |
Observation data: J2000 epoch | |
Right ascension | 18h 10m 28.6s[1] |
Declination | −19° 55′ 51″[1] |
Distance | 11,000–15,000 ly (3,300[2]–4,500[3] pc) |
Constellation | Sagittarius |
Notable features | massive H II region Star-forming regions |
Designations | GRS G010.47 +00.03[1] |
Westerhout 31, also known as W31, is a complex of star formation regions of the Milky Way located in the constellation of Sagittarius.