FIRST GLOBULAR CLUSTER (M92)

Managed to get out for an imaging session last night after work. The skies were clear so it was an opportunity not to be missed. I chose to have a look at M92 which is called a Globular Cluster. Discovered in 1777 by Johan Elert Bode, M92 is about 26,000 light years away from earth and can be found in the constellation of Hercules.

Globular Clusters are very tightly bound clusters of stars bound by gravity which gives them their spherical shapes and relatively high stellar densities towards the centre.

The setup, Polar aligment and 3 star alignment went well giving me a better and longer exposure time (unguided) of 60 seconds per sub @ ISO800 without any noticeable star trailing.

The set of subs (20 light and 10 darks) were then stacked in DSS (Deep Sky Stacker)to produce a single image which was then processed in Photoshop in order to produce a final image.

This is a single 60 second exposure before stacking or editing:

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This is the finished image after stacking and editing

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