NGC 7331
Caldwell 30
 
NGC 7331 is a spiral galaxy located in the constellation of Pegasus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 7331:
| NGC: | NGC 7331 | 
| Common name: | Caldwell 30 | 
| Type: | galaxy | 
| Galaxy type: | spiral | 
| Galaxy morph class: | Sbc | 
| Constellation: | Pegasus | 
| Surface brightness: | 23.0 mag/arcsec2 | 
| V-mag (visual): | 9.41 | 
| B-mag (blue): | 10.2 | 
| J-mag (IR): | 7.06 | 
| H-mag (IR): | |
| K-mag (IR): | 6.29 | 
| Right Ascension: | 22:37:04.01 | 
| Declination: | 34:24:55.90 | 
| Major axis: | 9.27 ' | 
| Minor axis: | 3.76 ' | 
| Angle (major axis): | 170° | 
| Radial velocity: | 818 km/s | 
| Redshift: | 0.002732 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS