NGC 3638
 
NGC 3638 is a spiral galaxy located in the constellation of Crater. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 3638:
| NGC: | NGC 3638 | 
| Type: | galaxy | 
| Galaxy type: | spiral | 
| Galaxy morph class: | Sb | 
| Constellation: | Crater | 
| Surface brightness: | 23.6 mag/arcsec2 | 
| B-mag (blue): | 14.1 | 
| Right Ascension: | 11:20:10.03 | 
| Declination: | -08:06:20.50 | 
| Major axis: | 1.6 ' | 
| Minor axis: | 0.38 ' | 
| Angle (major axis): | 140° | 
| Radial velocity: | 7007 km/s | 
| Redshift: | 0.02365 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS