M23 open cluster. Taken with 4in Astro-Physics refractor at f/6 with field flattener and Hutech-modified Canon 5D camera at ISO 800 for stack of 4 x 6 minute exposures. Taken from Coonabarabran, NSW, April 23, 2007.
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.
M24, Small Sagittarius star cloud with B92 near centre. Taken with Canon 20Da camera at ISO 400 and Canon 200mm L Lens at f/4 and for 6 minutes. Stack of three exposures. Taken from Coonabarabran, NSW, Australia, July 2006
