Globular Star Cluster M-12 (NGC 6218)

Globular Cluster, M-12

This is a 25-minute exposure (10:5:5:5 LRGB) taken with an SBIG ST-9E CCD camera through Kopernik's 20 inch F/8.1 telescope. The field of view is about 8 x 8 arc minutes.

Description of M-12 in The Deep Sky Field Guide to Uranometria 2000 (c) Willmann-Bell, Inc.: