Messier 13: The Great Globular Cluster in Hercules

Messier 13 is a globular cluster of approximately 300,000 stars in the constellation of Hercules. The cluster is located 25,000 light years away and is approximately 145 light years in diameter.

 

Details:

L: 38 x 300s

RGB: 18 x 300s per channel

Total: 7.67 hours

 

Equipment:

William Optics GT71, Atik 428EX, Astronomik LRGB

 

Processed with Pixinsight

Done