NGC 643
NGC 643 is a open cluster located in the constellation of Hydrus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 643:
| NGC: | NGC 643 |
| Type: | open cluster |
| Constellation: | Hydrus |
| J-mag (IR): | 12.9 |
| H-mag (IR): | |
| K-mag (IR): | 12.2 |
| Right Ascension: | 01:35:01.43 |
| Declination: | -75:33:24.70 |
| Major axis: | 2.2 ' |
| Minor axis: | 2.2 ' |
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS