M6 Butterfly Cluster (NGC 6405)
Apparent Magnitude: 4.2
Distance: Aprox: 1,600 light-years
Constellation: Scorpius
Star Count: Aprox 300
Diameter: 12 light-years
Messier 6 was named the Butterfly Cluster by the American astronomer Robert Burnham, who described it as a “charming group whose arrangement suggests the outline of a butterfly with open wings.” Most of the bright, visible stars in it are hot, young, blue stars belonging to the spectral class B4-B5. However, the brightest star in the cluster is an orange giant belonging to the spectral class K.
Taken 7/6/18 in Grand Rapids, Ohio by Russell Kille on a CPC 1100 with Hyperstar @ F2 and ZWO ASI294MC Pro camera