Hercules Cluster (M13)


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Sectional prints are available in dimensions that are multiples of 20cm (about 8 inches). The following sizes and prices are for example only. Please select the desired width below to get a quotation.

Size Price
80x60cm $90
120x80cm $140
160x120cm $210

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M13 is a very popular target for visual observers because it is such an impressive sight. It contains hundreds of thousands of stars. As the name suggests, it is located in the constellation Hercules and is about 25,000 light years from Earth.

I updated the previous version shot in late 2012. This new, sharper version was shot at a dark sky site (ITS) in August 2017.

Scope: AT111EDT at f/5.7
Mount: AP Mach1
Camera: QSI 683wsg at –20C
Exposure: LRGB, 3.1 hrs total


About Greg Marshall

I am a retired electronics engineer and after a few months of enjoying my leisure I began to miss doing product development. My astronomy hobby always needed new solutions to unique problems, so I decided that whenever I came up with a good solution I would try to make it available to others.

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