NGC 2239
Butterfly Nebula
NGC 2239 is a Cluster + nebula located in the constellation of Monoceros. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 2239:
| NGC: | NGC 2239 |
| Common name: | Butterfly Nebula |
| Type: | Cluster + nebula |
| Dupe x-reference: | NGC 2244 |
| Constellation: | Monoceros |
| V-mag (visual): | 4.8 |
| B-mag (blue): | 5.26 |
| Right Ascension: | 06:31:55.56 |
| Declination: | 04:56:34.60 |
| Major axis: | 9.3 ' |
| Radial velocity: | 34 km/s |
| Redshift: | 0.000112 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS