Messier 5 Globular Cluster in Serpens

24,500 light years away, M5 contains up to 500,000 stars and is not really visible to the naked eye.

Discovered in 1702 by Gottfried Kirch, this is one of the largest clusters known at 165 light years in diameter. Its 13 billion years old. The large star in the image is called 5 Serpentis (a white giant) and is only 82.8 light years away.
This is the first guided image I have taken using my ST80 guide scope and ZWO ASI120MC guide camera using PHD2. The image contains only 6 x 3 minute subs and 9 x 30 second subs for the core of the cluster.
Darks, Flats, and Bias frames where also used in Deep Sky Stacker.
So I'm really pleased to have been guiding on my first attempt.