M15 Globular Cluster using the home made barn door tracker.

Taken with a 200mm lens mounted on my Barn door. M15 is one of the oldest and most dense clusters in our galaxy. At nearly 12 billion years old and 33.6 light years away it is made up of 100,000 stars. Discovered in 1746 it lies in the constellation of Pegasus but to see it you need a good pair of binoculars or a small telescope as its just too faint too see with the naked eye.

The image was made from 4 x 3 minute images with 6 darks. A very poor seeing night and the 3 minute exposures at 1600 iso looked completely blown out. With the aid of deep sky stacker this amazing cluster appeared.