NGC 4646
NGC 4646 is a elliptical galaxy located in the constellation of Ursa Major. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 4646:
| NGC: | NGC 4646 |
| Type: | galaxy |
| Galaxy type: | elliptical |
| Galaxy morph class: | E |
| Constellation: | Ursa Major |
| Surface brightness: | 22.1 mag/arcsec2 |
| V-mag (visual): | 13.3 |
| B-mag (blue): | 14.3 |
| J-mag (IR): | 10.8 |
| H-mag (IR): | |
| K-mag (IR): | 10.0 |
| Right Ascension: | 12:42:52.12 |
| Declination: | 54:51:21.60 |
| Major axis: | 0.63 ' |
| Minor axis: | 0.28 ' |
| Angle (major axis): | 17° |
| Radial velocity: | 4559 km/s |
| Redshift: | 0.015324 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS