This globular cluster in the southern constellation Centaurus is around 17000 lightyears distant. Containing perhaps 10 million stars and at 150 lightyears across, it is the largest globular cluster orbiting our Milky Way galaxy. It differs from other globular clusters and may be the remnant of a dwarf galaxy, disrupted by our galaxy.
This LRGB image is the result of 72 minutes of remote data capture from New South Wales, using a 20-inch Planewave CDK reflector and FLI-PL09000 CCD camera.
Photographer: Graham Wilcock