NGC 4990 Cocoon Galaxy
NGC 4990 is a lenticular galaxy located in the constellation Virgo. Some key stats include:
| NGC: | NGC 4990 |
| Common name: | Cocoon Galaxy |
| Type: | galaxy |
| Galaxy type: | lenticular |
| Galaxy morph class: | S0 |
| Constellation: | Virgo |
| Surface brightness: | 22.7 mag/arcsec2 |
| V-magnitude (visual): | 13.8 |
| B-magnitude (blue): | 14.0 |
| J-magnitude (IR): | 11.2 |
| H-magnitude (IR): | |
| K-magnitude (IR): | 10.6 |
| Right Ascension: | 13:09:17.29 |
| Declination: | -05:16:22.10 |
| Major axis: | 0.9 ' |
| Minor axis: | 0.81 ' |
| Angle (major axis): | 48° |
| Radial velocity: | 3141 km/s |
| Redshift: | 0.010533 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula