
Messier 6 : Butterfly Cluster
Messier 6 the Butterfly Cluster (also cataloged as M6 and as NGC 6405) is an open cluster of stars located in the southern constellation of Scorpius. American astronomer Robert Burnham has given its name as Butterfly Cluster because of its outlines shape to a butterfly with open wings. In 1654 Giovanni Battista Hodierna was the first astronomer to record the existence of the Butterfly Cluster. … Continue reading Messier 6 : Butterfly Cluster