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.
Taken with 4-inch apo refractor at f/4.5 with Canon 20Da camera at IS0800 for 5 minutes. Stack of two exposures. One layer median filtered and gaussian blurred to enhance glows around stars.
