NGC 1640
NGC 1640 is a spiral galaxy located in the constellation Eridanus. Some key stats include:
| NGC: | NGC 1640 |
| Type: | galaxy |
| Galaxy type: | spiral |
| Galaxy morph class: | Sb |
| Constellation: | Eridanus |
| Surface brightness: | 23.3 mag/arcsec2 |
| V-magnitude (visual): | 11.6 |
| B-magnitude (blue): | 12.4 |
| J-magnitude (IR): | 9.81 |
| H-magnitude (IR): | |
| K-magnitude (IR): | 9.14 |
| Right Ascension: | 04:42:14.52 |
| Declination: | -20:26:05.20 |
| Major axis: | 2.72 ' |
| Minor axis: | 2.6 ' |
| Angle (major axis): | 50° |
| Radial velocity: | 1603 km/s |
| Redshift: | 0.00536 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula