NGC 840
NGC 840 is a spiral galaxy located in the constellation Cetus. Some key stats include:
| NGC: | NGC 840 |
| Type: | galaxy |
| Galaxy type: | spiral |
| Galaxy morph class: | Sb |
| Constellation: | Cetus |
| Surface brightness: | 23.6 mag/arcsec2 |
| V-magnitude (visual): | 13.4 |
| B-magnitude (blue): | 14.3 |
| J-magnitude (IR): | 11.3 |
| H-magnitude (IR): | |
| K-magnitude (IR): | 10.5 |
| Right Ascension: | 02:10:16.21 |
| Declination: | 07:50:43.10 |
| Major axis: | 1.74 ' |
| Minor axis: | 0.78 ' |
| Angle (major axis): | 77° |
| Radial velocity: | 7151 km/s |
| Redshift: | 0.024143 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula