The often-photographed (certainly by me) area of the North America Nebula, NGC 7000, near the bright star Deneb, which is in the frame at right, in Cygnus. The Pelican Nebula, IC 5067/70 is right of the North America, in the “Atlantic Ocean” so to speak. The nebulosity at bottom is the “Cygnus Arc,” IC 5068. The small patch of blue reflection nebulosity at top is IC 5076. The patches of dark nebulosity above the North America Nebula are B352 and B356. This is a stack and blend of: four exposures without a filter, each 8 minutes at ISO 800, and four exposures with an Optolong L-Enhance nebula filter to bring out the faintest nebulosity, each 16 minutes at ISO 1600. These are blended in with a Lighten mode. All were with the William Optics RedCat 51mm astrographic refractor at its native f/5 and Canon EOS Ra camera, the factory filter-modified camera capable of recording this type of hydrogen-alpha emitting nebulas. Guided with the ZWO ASIAir and ASI120MM guide camera, on the Astro-Physics Mach1 mount. Taken from home on a perfect summer night on August 15, 2020.
An observer gazing into the Milky Way with a large reflector telescope at the 2014 OzSky Star Safari star party near Coonabarabran, NSW, Australia, March 2014. The Dark Emu pattern of dark lanes in the Milky Way is rising in the east behind the observer. This is a single untracked 30-second exposure at f/2.8 with the 15mm lens and Canon 60Da at ISO 3200. Dew on the lens adds the star glows.
Orion and Canis Major, with Sirius, the Dog Star, at lower left. I shot this from New Mexico from the Gila Wilderness summit of Highway 15, on March 10, 2015. This is a tracked set of 4 x 3-minute exposures at f/2.8 with the 35mm lens and filter-modified Canon 5D MkII at ISO 1600. Some airglow brightened the sky at lower right.
