NGC 3640
 
NGC 3640 is a elliptical 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 3640:
| NGC: | NGC 3640 | 
| Type: | galaxy | 
| Galaxy type: | elliptical | 
| Galaxy morph class: | E | 
| Constellation: | Leo | 
| Surface brightness: | 23.3 mag/arcsec2 | 
| V-mag (visual): | 10.4 | 
| B-mag (blue): | 11.3 | 
| J-mag (IR): | 8.44 | 
| H-mag (IR): | |
| K-mag (IR): | 7.79 | 
| Right Ascension: | 11:21:06.85 | 
| Declination: | 03:14:05.40 | 
| Major axis: | 4.33 ' | 
| Minor axis: | 3.81 ' | 
| Angle (major axis): | 98° | 
| Radial velocity: | 1315 km/s | 
| Redshift: | 0.004396 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS