NGC 3966
 
NGC 3966 is a lenticular galaxy 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 3966:
| NGC: | NGC 3966 | 
| Type: | galaxy | 
| Dupe x-reference: | NGC 3986 | 
| Galaxy type: | lenticular | 
| Galaxy morph class: | S0-a | 
| Constellation: | Ursa Major | 
| Surface brightness: | 24.4 mag/arcsec2 | 
| B-mag (blue): | 13.8 | 
| J-mag (IR): | 10.0 | 
| H-mag (IR): | |
| K-mag (IR): | 9.38 | 
| Right Ascension: | 11:56:44.19 | 
| Declination: | 32:01:18.40 | 
| Major axis: | 2.48 ' | 
| Minor axis: | 0.52 ' | 
| Angle (major axis): | 109° | 
| Radial velocity: | 3229 km/s | 
| Redshift: | 0.01083 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS