NGC 4991
NGC 4991 is a barred spiral galaxy located in the constellation Virgo. Some key stats include:
| NGC: | NGC 4991 |
| Type: | galaxy |
| Galaxy type: | barred spiral |
| Galaxy morph class: | SBb |
| Constellation: | Virgo |
| Surface brightness: | 22.9 mag/arcsec2 |
| B-magnitude (blue): | 15.4 |
| J-magnitude (IR): | 12.8 |
| H-magnitude (IR): | |
| K-magnitude (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 units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula