NGC 6405 Butterfly Cluster
NGC 6405 is a open cluster located in the constellation Scorpius. Some key stats include:
| NGC: | NGC 6405 |
| Common name: | Butterfly Cluster |
| Messier: | M 6 |
| Type: | open cluster |
| Constellation: | Scorpius |
| V-magnitude (visual): | 4.2 |
| B-magnitude (blue): | 4.48 |
| Right Ascension: | 17:40:20.75 |
| Declination: | -32:15:15.00 |
| Major axis: | 15.6 ' |
| Radial velocity: | -9 km/s |
| Redshift: | -0.00003 |
Right Ascension units = HH:MM:SS.SS
Declination units = DD:MM:SS.SS
PN = planetary nebula