M9_NGC6356_RGB_AP155_G4_May2019_SqCrop
M9 (bottom left) + ngc6356 (top right) - Globular Clusters in Ophiuchus
Moravian G4 camera w Astrodon Gen II filters
Astro-Physics AP155EDF Refractor w Robofocus
13/10/12 x 10 min for each of RGB
Paramount MX guided w ST-402 and Borg 60mm achromat
Image acquisition via CCD-Commander and TSX
Processing in PixInsight and PS CC 2021
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From Wikipedia:
Messier 9 or M9 (also designated NGC 6333) is a globular cluster in the constellation of Ophiuchus. It is positioned in the southern part of the constellation to the southwest of Eta Ophiuchi, and lies atop a dark cloud of dust designated Barnard 64. The cluster was discovered by French astronomer Charles Messier on June 3, 1764, who described it as a "nebula without stars". In 1783, English astronomer William Herschel was able to use his reflector to resolve individual stars within the cluster. He estimated the cluster to be 7–8′ in diameter with stars densely packed near the center.
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Captured May 2019
Lucknow, Ontario