Messier 23, a bright star cluster in Sagittarius, shot from home on a very clear night, August 4, 2019, with the object low in the south. This is a st

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Messier 23, a bright star cluster in Sagittarius, shot from home on a very clear night, August 4, 2019, with the object low in the south. This is a stack of 5 x 8-minute exposures with the Astro-Physics Traveler 105mm apo refractor at f/6 and Canon 6D MkII at ISO 800. I used the AP 6x7 field flattener here. LENR darks subtracted in camera. Diffraction spikes added for artistic effect with Astronomy Tools actions.

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Size: 5400px × 3605px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ap, astro, astronomy, cluster, field, flattener, m23, messier, open, photography, sagittarius, skies, sky, star, stars, starshrink, tools, traveler