Globular Cluster in Hercules.
A favorite target at any summer star party or public observing session is Messier 13. This is one of the brightest globular clusters visible from the northern hemisphere, a dense ball of about 500,000 stars. The cluster can be just glimpsed with the naked eye from dark skies, and it is easy to see with binoculars as a small fuzzy patch. It is a great sight in telescopes of medium to large aperture.
This is my first image using a new SBIG camera. I need to refine my techniques with this camera, but I am pleased with my first attempt.
Image details: Red, green, and blue exposure times of 30 minutes each, taken with an SBIG 8300M camera and a Meade 12”
telescope at f/10.
June 2011