NGC 639
NGC 639 is a early spiral galaxy located in the constellation of Sculptor. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 639:
| NGC: | NGC 639 |
| Type: | galaxy |
| Galaxy type: | early spiral |
| Galaxy morph class: | Sa |
| Constellation: | Sculptor |
| Surface brightness: | 22.9 mag/arcsec2 |
| V-mag (visual): | 14.1 |
| B-mag (blue): | 14.7 |
| J-mag (IR): | 12.3 |
| H-mag (IR): | |
| K-mag (IR): | 11.6 |
| Right Ascension: | 01:38:59.05 |
| Declination: | -29:55:31.20 |
| Major axis: | 1.04 ' |
| Minor axis: | 0.3 ' |
| Angle (major axis): | 32° |
| Radial velocity: | 5796 km/s |
| Redshift: | 0.019524 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS