M13 Globular Cluster
M13 Globular Cluster LRGB
M13 in the constellation Hercules is approximately 25,000 light years from Earth. The diameter is about 145 light years. This is sometimes called the Hercules Globular Cluster. M13 consists of over several hundred thousand stars. the apparent size of this cluster is 23 arcmin. In the upper corner of this image is the galaxy NGC6207. the small galaxy directly between Ngc6207 and M13 is IC4617.
Fullsize image
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Scope Planewave 17in
Camera Apogee U16
Mount Paramount ME
Filters Astrodon LRGB
Exposures R 1hr G 1hr B 1hr L 1.5Hrs LRGB 15min subs Total time 4.5 Hrs
Location Sierra Nevada Mountains CA. Heavens Mirror Observatory SRO 2012