NGC 6939
NGC 6939 is a open cluster located in the constellation of Cepheus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 6939:
| NGC: | NGC 6939 |
| Type: | open cluster |
| Constellation: | Cepheus |
| V-mag (visual): | 7.8 |
| B-mag (blue): | 8.85 |
| Right Ascension: | 20:31:30.13 |
| Declination: | 60:39:43.50 |
| Major axis: | 12 ' |
| Radial velocity: | -19 km/s |
| Redshift: | -0.00006 |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS