Great Globular Cluster in Hercules
This cluster was first discovered in 1714 by Edmond Halley. It has about 300,000 stars and is 100 light years from earth. In 1974, we (humans) sent the Arecibo message, containing encoded information about human race, DNA, atomic numbers, Earth position, to this cluster for an extraterrestrial civilization to pick up. It will reach the cluster in 25,000 years!
First real attempt at true astrophotography in terms of taking light frames, dark frames, stacking images and post processing. The coma is very apparent around the edges of the photo and will need to be addressed at some time in the future. Also, there is a very faint galaxy in the picture. Can you find it?
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