NGC 663 Caldwell 10
NGC 663 is a open cluster located in the constellation Cassiopeia. Some key stats include:
| NGC: | NGC 663 |
| Common name: | Caldwell 10 |
| Type: | open cluster |
| Constellation: | Cassiopeia |
| V-magnitude (visual): | 7.1 |
| B-magnitude (blue): | 7.78 |
| Right Ascension: | 01:46:16.05 |
| Declination: | 61:13:05.50 |
| Major axis: | 6 ' |
| Radial velocity: | -32 km/s |
| Redshift: | -0.00010 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula