NGC 3181
 
NGC 3181 is a H II region located in the constellation of Ursa Major. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 3181:
| NGC: | NGC 3181 | 
| Type: | H II region | 
| Constellation: | Ursa Major | 
| B-mag (blue): | 15.7 | 
| Right Ascension: | 10:18:11.51 | 
| Declination: | 41:24:45.70 | 
| Major axis: | 2.84 ' | 
| Minor axis: | 0.83 ' | 
| Angle (major axis): | 123° | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS