M6   NGC 6405
The Butterfly Cluster

Object Type Open Cluster
Constellation Scorpius
Magnitude 3.3
Size 75.0' x 75.0'

Easily visible to the naked eye, M6 is a suberb object for a small telescope. The cluster is fairly small and scattered. The main stars are quite bright and bluish, and form a distinct outline of a butterfly with wings outstretched. In an 8" telescope at low magnification, the cluster is a facinating sight.


45 minutes exposure, Fuji Super HG V 400 film.
5" f/5 refractor at prime focus.