Hercules Cluster

116. Hercules Cluster

Messier 13  RA: 16h 41.7'  Dec: +36 28'   Hercules (Her)

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Messier 13 or M13, also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of several hundred thousand stars in the constellation of Hercules.
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Messier 13 is one of the prime observing targets in the northern hemisphere. Big, bright and bold it rides between two contrasting coloured stars. An 8in SCT frames it nicely with a 10mm eyepiece. In the image above two bacground galaxies can be seen: NGC6207 can be easily seen in the lower right corner and is 64mly away, and IC4617 is further away and a bit harder to see just down and to the right of the cluster and is 8 times farther away from us.

Main Image Information

Location Burlington IN
Date July 1 2016
Optics Orion 10 f/3.9
Filters Baader MPCC
Mount Celestron CGE
Camera Nikon D810A
ISO 1250
Subexposures 10
Exposure Length 90
Guider KwiqGuider

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All images copyright © 2006-2021, Rick Saunders
Main text descriptions sourced from Wikipaedia.
Sky position information is based on IP geolocation and is therefore approximate.