Amazing Sky by Alan Dyer

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Messier Objects

Image 55 of 284

M13, globular cluster in Hercules (Bino Field)

M13, globular in Hercules (200mm 6DII).jpg

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A telephoto lens image of the globular cluster Messier 13 in Hercules. This is shot to simulate the field of view of binoculars for illustration purposes. The star at top is eta Herculis in the Keystone. The pair of red stars ar lower right at Nu1 and Nu2 Corona Borealis.

This is a stack of 6 x 1-minute exposures with the 200mm lens at f/2.8 and Canon 6D MkII at ISO 800, tracked but unguided on the Mach 1 mount, on April 28, 2019.
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© 2019 Alan Dyer
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6244x4163 / 10.5MB
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A telephoto lens image of the globular cluster Messier 13 in Hercules. This is shot to simulate the field of view of binoculars for illustration purposes. The star at top is eta Herculis in the Keystone. The pair of red stars ar lower right at Nu1 and Nu2 Corona Borealis. <br /> <br /> This is a stack of 6 x 1-minute exposures with the 200mm lens at f/2.8 and Canon 6D MkII at ISO 800, tracked but unguided on the Mach 1 mount, on April 28, 2019.