NGC 4991
NGC 4991 is a barred 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 4991:
| NGC: | NGC 4991 |
| Type: | galaxy |
| Galaxy type: | barred spiral |
| Galaxy morph class: | SBb |
| Constellation: | Virgo |
| Surface brightness: | 22.9 mag/arcsec2 |
| B-mag (blue): | 15.4 |
| J-mag (IR): | 12.8 |
| H-mag (IR): | |
| K-mag (IR): | 12.2 |
| Right Ascension: | 13:09:15.11 |
| Declination: | 02:20:51.60 |
| Major axis: | 0.59 ' |
| Minor axis: | 0.48 ' |
| Angle (major axis): | 101° |
| Radial velocity: | 16554 km/s |
| Redshift: | 0.05683 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS