NGC 691
NGC 691 is a spiral galaxy located in the constellation of Aries. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 691:
| NGC: | NGC 691 |
| Type: | galaxy |
| Galaxy type: | spiral |
| Galaxy morph class: | Sbc |
| Constellation: | Aries |
| Surface brightness: | 22.8 mag/arcsec2 |
| V-mag (visual): | 11.7 |
| B-mag (blue): | 12.2 |
| J-mag (IR): | 9.68 |
| H-mag (IR): | |
| K-mag (IR): | 8.99 |
| Right Ascension: | 01:50:41.72 |
| Declination: | 21:45:35.70 |
| Major axis: | 2.68 ' |
| Minor axis: | 1.85 ' |
| Angle (major axis): | 92° |
| Radial velocity: | 2610 km/s |
| Redshift: | 0.008744 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS