NGC 4643
NGC 4643 is a lenticular 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 4643:
| NGC: | NGC 4643 |
| Type: | galaxy |
| Galaxy type: | lenticular |
| Galaxy morph class: | S0-a |
| Constellation: | Virgo |
| Surface brightness: | 21.6 mag/arcsec2 |
| V-mag (visual): | 10.6 |
| B-mag (blue): | 11.2 |
| J-mag (IR): | 8.32 |
| H-mag (IR): | |
| K-mag (IR): | 7.67 |
| Right Ascension: | 12:43:20.14 |
| Declination: | 01:58:41.80 |
| Major axis: | 2.24 ' |
| Minor axis: | 1.75 ' |
| Angle (major axis): | 132° |
| Radial velocity: | 1316 km/s |
| Redshift: | 0.0044 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS