Object/Date:
M13 @ 2013-07-06
Tech data:
GSO 8" f/4 Refractor + Canon EOS 350D camera (12×180 sec. at ISO 1600)
Description:
M13 is the Great Globular Cluster in Hercules, contains about 300.000 stars in a sphere with a radius of 75 years-light. Was discovered by Edmond Halley on 1714. With a combined magnitude of 5,8 is hardly visible at naked eye from dark sites, but with a simple binoculars is possible to perceive its beautiful and resolve a lot of stars that compose it. At upper left it can see the galaxy NGC 6207 with 12 magnitude, and a half dozen more of small and faint galaxies spread along the image.
Post link - More resolution:
http://cometografia.es/2013/07/gran-cumulo-hercules/