A panaoramic mosaic of the southern Milky Way region from the Coal Sack dark nebula and Alpha Cruxis, (aka Acrux) at left, to IC 2944/8, the Running Chicken Nebula, at right, with the star cluster, NGC 3766, above. The cluster IC 2714 is at the lower right corner. The star cluster NGC 4609 is left of Acrux, in the Coal Sack. This is a 3-panel mosaic, each panel a 4 x 6-minute exposure with the Borg 77mm f/4 astrograph and filter-modified Canon 5D MkII at ISO 1600. Stacking and stitching in Photoshop CC 2015. Taken from Tibuc Cottage, Australia, April 11, 2016.
The Coathanger star cluster and asterism in the Milky Way in southern Cygnus, aka Collinder 399 or Brocchi’s Cluster. The field is similar to what a pair of large binoculars would show. I shot this from home Nov. 25, 2019. This is a stack of 6 x 2-minute unguided exposures with the 200mm Canon telephoto at f/2.8 and stock Canon 6D MkII at ISO 1600. An additional exposure taken through the Kenko Softon A filter adds the star glows. All were with the camera on the Fornax LighTrack II tracker.
The asterism known as the Coathanger, aka Cr 399, in Vulpecula, at upper right here. The faint blue reflection nebula above it is Sharpless 2-83; the small reflection nebula at bottom is Sh-2-82. The small open cluster off the left tip of the Coathanger is NGC 6802. The Coathanger asterism is a fine one for binoculars. The 7.5 x 5° field is close to a binocular field of view. This is a stack of 12 x 6-minute exposures with the SharpStar 61mm apo refractor at f/4.5 and with the Canon R6 at ISO 1250. Taken from home Sept. 30, 2021. Diffraction spikes added with Astronomy Tools actions.
