NGC 4639
NGC 4639 is a spiral galaxy located in the constellation of Virgo. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 4639:
| NGC: | NGC 4639 |
| Type: | galaxy |
| Galaxy type: | spiral |
| Galaxy morph class: | Sbc |
| Constellation: | Virgo |
| Surface brightness: | 22.7 mag/arcsec2 |
| V-mag (visual): | 11.6 |
| B-mag (blue): | 12.0 |
| J-mag (IR): | 9.65 |
| H-mag (IR): | |
| K-mag (IR): | 9.03 |
| Right Ascension: | 12:42:52.39 |
| Declination: | 13:15:26.60 |
| Major axis: | 2.87 ' |
| Minor axis: | 1.88 ' |
| Angle (major axis): | 138° |
| Radial velocity: | 1089 km/s |
| Redshift: | 0.00364 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS