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Taken 26-Apr-14
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Dimensions2844 x 2854
Original file size17.4 MB
Image typeJPEG
Color spaceUncalibrated
Date modified26-Apr-14 16:07
M13 The Hercules Cluster (#16)

M13 The Hercules Cluster (#16)

This image of the Hercules globular cluster M13 was taken on June 5, 2011, the first use of an Orion 8" Ritchie-Chretien astrograph on a new mounting. Six 5 min. exposures at ISO 800 through a modified Canon XSi were processed with ImagesPlus. The frame was cropped horizontally to centre the cluster.