NGC 3991 NED01
NGC 3991 NED01 is a barred irregular galaxy located in the constellation Ursa Major. Some key stats include:
| NGC: | NGC 3991 NED01 |
| Type: | galaxy |
| Duplicate cross-reference: | NGC 3991S |
| Galaxy type: | barred irregular |
| Galaxy morph class: | IB |
| Constellation: | Ursa Major |
| Surface brightness: | 21.3 mag/arcsec2 |
| V-magnitude (visual): | 13.1 |
| B-magnitude (blue): | 13.5 |
| J-magnitude (IR): | 11.6 |
| H-magnitude (IR): | |
| K-magnitude (IR): | 11.0 |
| Right Ascension: | 11:57:30.38 |
| Declination: | 32:20:01.80 |
| Major axis: | 1.17 ' |
| Minor axis: | 0.29 ' |
| Angle (major axis): | 31° |
| Radial velocity: | 3158 km/s |
| Redshift: | 0.01059 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula