Stack of three 6-minute exposures at f/6 with 5-inch Astro-Physics apo refractor with 6x7 field flattener for cleaner edge performance. ISO 400 and about -5°C ambient temperature. Each image averaged stacked. Dark frame subtracted for each frame in camera with Canon LENR. Taken January 27/28, 2006.
Mars (at top) and Saturn (at left) in Scorpius (or thereabouts - Saturn is technically in Ophiuchus) above Antares and the dark and reflection nebulas around Antares. The globular M4 is visible to the right of Antares. This is a stack of 4 x 3 minute exposures with the 135mm telephoto lens at f/2.8 and filter-modified Canon 5D MkII at ISO 1600, shot April 14, 2016 from Tibuc Cottage, Australia.
Saturn (at top) above the globular star cluster M22 in Sagittarius, on May 15-16, 2018, in the pre-dawn hours as the sky was beginning to brighten with twilight. The smaller globular, M28, is at lower right. This is a stack of 5 x 4-minute exposures with the Meade 70mm f/5 astrograph and Canon 5D Mark II at ISO 1600.
