|Right ascension 5 31|
Distance ~7000 ly
Apparent magnitude (V) 10.1
|Declination +34° 15′|
Apparent dimensions (V) 3′
|Similar NGC 1907, IC 405, NGC 1579, NGC 1893, NGC 1555|
NGC 1931, found in the constellation Auriga has been referred to as a "miniature version of the Orion Nebula", as it shares some of the same characteristics. It is a mixed emission-reflection nebula, and contains a smaller version of the Trapezium in its hot young star cluster centered in the emission nebula. The entire cluster/nebula complex is only about 3 arcmin in size. The distance from earth is estimated at about 7000 light years.
The nebula is Sharpless catalog Sh 2-237.