Comet Hartley 2 near the Pacman Nebula, NGC 281, in Cassiopeia. Stack of 4 x 6 minute exposures at ISO 1600 with Canon 5D MkII on A&M 105mm apo refractor at f/4.8 with Borg reducer/flattener. Bright star is Alpha Cas, Schedar. Autoguided with Celestron NexGuide autoguider. However, image of comet core is from only one exposure to minimize trailing from this fast-moving comet.
Bright rainbow created by Sun low in west just about to set with raindrops in the air to the east, and light rain falling at the time. Taken with Canon 7D and 10-22mm lens at 10mm, in two sections, stitched together in Photoshop. Note: bright interior region inside inner bow, darker exterior region, supernumerary arcs along inside edge of inner bow at top, reversal of colours in two bows, and bright red portion of the spectrum from very red sunlight from low sun angle. Taken from southern Alberta, Canada.
M27 with 130mm Astro-Physics apo at f/6 with no field flattener (slight camera tilt results in more coma at left of frame), for stack of 6 c 8 minute exposures at ISO 800 with Canon 7D (stock camera, not modified). Auto-guided with SG4. Worked perfectly.
