NGC 3990
 
NGC 3990 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 3990:
| NGC: | NGC 3990 | 
| Type: | galaxy | 
| Galaxy type: | lenticular | 
| Galaxy morph class: | E-S0 | 
| Constellation: | Ursa Major | 
| Surface brightness: | 22.8 mag/arcsec2 | 
| V-mag (visual): | 12.5 | 
| B-mag (blue): | 13.4 | 
| J-mag (IR): | 10.4 | 
| H-mag (IR): | |
| K-mag (IR): | 9.75 | 
| Right Ascension: | 11:57:35.56 | 
| Declination: | 55:27:31.20 | 
| Major axis: | 1.38 ' | 
| Minor axis: | 0.81 ' | 
| Angle (major axis): | 42° | 
| Radial velocity: | 705 km/s | 
| Redshift: | 0.002355 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS