Taken April 23, 2006 with 5-inch apo refractor at f/4.5 and Canon 20Da camera at ISO400. Four 10-minute exposures average-stacked.
Messier 101, the Pinwheel Galaxy in Ursa Major, a classic face-on spiral galaxy, large and obvious in binoculars. The odd galaxy at bottom is NGC 5474. This is a stack of 9 x 10-minute exposures with the Canon EOS Ra camera at ISO 800 through the Astro-Physics 130mm apo refractor at f/6 with the 6x7 field flattener lens.
A telephoto lens image of the face-on spiral galaxy Messier 101 in Ursa Major above the handle of the Big Dipper. This is shot to simulate the field of view of binoculars for illustration purposes. This is a stack of 6 x 1-minute exposures with the 200mm lens at f/2.8 and Canon 6D MkII at ISO 800, tracked but unguided on the Mach 1 mount, on April 28, 2019.
