NGC 3491
 
NGC 3491 is a lenticular galaxy located in the constellation of Leo. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 3491:
| NGC: | NGC 3491 | 
| Type: | galaxy | 
| Galaxy type: | lenticular | 
| Galaxy morph class: | E-S0 | 
| Constellation: | Leo | 
| Surface brightness: | 22.8 mag/arcsec2 | 
| V-mag (visual): | 13.2 | 
| B-mag (blue): | 14.2 | 
| J-mag (IR): | 10.9 | 
| H-mag (IR): | |
| K-mag (IR): | 10.2 | 
| Right Ascension: | 11:00:35.40 | 
| Declination: | 12:09:41.60 | 
| Major axis: | 0.92 ' | 
| Minor axis: | 0.9 ' | 
| Angle (major axis): | 140° | 
| Radial velocity: | 6285 km/s | 
| Redshift: | 0.02119 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS