NGC 6645
NGC 6645 is a open cluster located in the constellation of Sagittarius. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 6645:
| NGC: | NGC 6645 |
| Type: | open cluster |
| Constellation: | Sagittarius |
| V-mag (visual): | 8.5 |
| Right Ascension: | 18:32:37.90 |
| Declination: | -16:53:02.00 |
| Major axis: | 5.4 ' |
| Radial velocity: | -4 km/s |
| Redshift: | -0.00001 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS