The Leo Trio or Triplet of spiral galaxies — Messier 65 (right), Messier 66 (left) and the edge-on galaxy NGC 3628 (top), three bright galaxies for small telescopes below the star Chertan in eastern Leo. This is a stack of 10 x 6-minute exposures at ISO 800 with the Canon EOS Ra through the SharpStar 94mm EDPH apo refractor with its dedicated field flattener/reducer for f/4.5. Auto-guided with the Lacerta MGEN3 stand-alone auto-guider which dithered the images by 5 pixels between each exposure. No darks applied.
A telephoto lens image of the spiral galaxies M65 and M66 and NGC 3628 (aka the Leo Trio), below the back end of Leo the Lion, shot to simulate the field of view of binoculars for illustration purposes. This is a stack of 5 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 24, 2019.
Leo Triplet of galaxies, taken with 5-inch Astro-Physics refractor at f/6 (no flattener) and Canon 7D camera, on Mach1 mount as a test of SBIG SG-4 autoguider. Stack of 2 x 8 minutes at ISO1600 and 4 x 15 minutes at ISO800. Median combined.
