The pair of large and loose star clusters on the Serpens-Ophiuchus border known as the S-O Double Cluster. IC 4756 is at left; NGC 6633 is at right. Both are fine targets for binoculars. The 7.5 x 5° field is close to a binocular field of view. This is a stack of 10 x 6-minute exposures with the SharpStar 61mm apo refractor at f/4.5 and with the Canon R6 at ISO 800. Taken from home Oct 3, 2021. Diffraction spikes added with Astronomy Tools actions.
A portrait of a dim comet, PanSTARRS C/2017 K2, passing above the Serpens-Ophiuchus (S-O) Double Cluster at bottom, consisting of IC 4756 at lower left and NGC 6633 at lower right. This was the night of May 25-26, 2022. The comet is at top as a fuzzy green star, very small with a stubby tail. It was about 8th magnitude. This is a stack of ten 5-minute exposures with the William Optics RedCat 51 at f/4.9 and the Canon R5 at ISO 800.
The summer constellations of Sagittarius and Scorpius skimming low across the south from my latitude of 51° N, above the trees from my backyard site in rural Alberta. Jupiter is the bright object right of centre; Saturn is left of centre. Altair is at upper left. A number of deep-sky objects show up, particularly the Messier nebulas and star clusters, as well as the Scutum Starcloud left of centre, and above it several large binocular open star clusters. The constellation of Ophiuchus is at right of centre occupying most of the frame. Aquila is at far left along the Milky Way. This is a stack of 4 x 1-minute tracked exposures with the Nikon D750 at ISO 1600 and Sigma 24mm lens at f/2.2, plus one of those exposures blended in for the ground to minimize its blurring. Another exposure taken through the Kenko Softon A filter was blended in to add the star glows, though light cloud this night added some glows naturally.
