M13 Hercules Globular Cluster
M13 is a rather dense globular cluster that is sometimes visible with the naked eye. It lies 25,000 light years from Earth, is 145 light years across, and contains over 300,00 stars. Galaxy IC4617 appears faintly at mid-top if you zoom-in. North is at the top.

Scope/Mount: AstroTech AT8RC 8" F8 Ritchey-Chretien with ATFF2 Field Flattener, Celestron CI-700 Mount

Camera: Orion StarShoot Pro V2 one-shot color
Guiding: QHY5L-IIM through Orion Deluxe OAG, PHD guiding software
Exposure: (9) 5 min
Software: Nebulosity, PhotoShop CS2
Comment: 06-13-15, Tierra del Sol, CA. Below average seeing, some clouds.