NGC 3947
 
NGC 3947 is a spiral 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 3947:
| NGC: | NGC 3947 | 
| Type: | galaxy | 
| Galaxy type: | spiral | 
| Galaxy morph class: | Sb | 
| Constellation: | Leo | 
| Surface brightness: | 22.9 mag/arcsec2 | 
| V-mag (visual): | 13.2 | 
| B-mag (blue): | 13.9 | 
| J-mag (IR): | 11.2 | 
| H-mag (IR): | |
| K-mag (IR): | 10.5 | 
| Right Ascension: | 11:53:20.32 | 
| Declination: | 20:45:06.20 | 
| Major axis: | 1.37 ' | 
| Minor axis: | 0.8 ' | 
| Angle (major axis): | 106° | 
| Radial velocity: | 6141 km/s | 
| Redshift: | 0.0207 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS