The spectacular field of Messier 6 and 7 open star clusters in Scorpius, with M7, aka Ptolemy’s Cluster, embedded in the dense starfields of the galactic centre at right, and M6, the Butterfly Cluster, set against the darker dust lanes of the Milky Way. I shot this April 4, 2016 from the Tibuc Cottage at Coonabarabran, NSW, Australia, using the 77mm Borg f/4 astrograph for a stack of 5 x 6-minute exposures with the filter-modified Canon 5D MkII at ISO 1600. Diffraction spikes added with Astronomy Tools actions.
M6 Butterfly Cluster, with 4-inch Astro-Physics Traveler apo refractor at f/6 and Canon 20Da at ISO800 for stack of two 2-minute exposures. Taken from Queensland, Australia, July 30, 2006.
The M6 star cluster and Sagittarius Starcloud low in the south through the trees from home at latitude 51° North on a May morning with the sky brightening with twilight. Demonstrates the lwo altitude of this area of the sky. This is a stack of 4 x 1-minute exposures with the 200mm lens at f/2.8 and Canon 5D MkII at ISO 3200, on the Star Adventurer Mini.
