This is a telephoto lens framing of Comet Tsuchinshan-ATLAS (C/2023 A3) in Ophiuchus on the night of October 30, 2024 near several large star clusters and an asterism. The field of view is 15º by 10º so the tail of the comet seems to extend for about 6º to 8º. Visually, even in binoculars, the tail was much shorter, perhaps only 3º to 4º at best.

The tail extends to the upper left toward a pair of star clusters: At top left is the large loose cluster IC 4756 in Serpens, and to the right of it is NGC 6633 in Ophiuchus. Together they form a nice "double cluster" for binoculars, dubbed the S-O Double Cluster by astronomy author Terence Dickinson.

At lower right above the yellow star Cebalrai in Ophiuchus is the large scattered cluster IC 4665, another fine binocular cluster.

Below the comet is the large V-shaped asterism of stars that resembles the Hyades star cluster in Taurus the Bull. As such it was dubbed "Taurus Poniatovii" (Poniatowski's Bull) by the 18th century Polish astronomer Marcon Paczsobutt in honour of the King of Poland at the time. It was depicted on star charts as a constellation in the early 1800s, but as a formal constellation it is now defunct. However, it is an obvious asterism in binoculars.

At lower left are dark dust clouds in the Milky Way.

Technical:
This is a stack of 20 x 1 minute exposures with the RF135mm lens at f/2 on the Canon Ra camera at ISO 800, and on the MSM Nomad tracker. Taken from home in Alberta on October 30, 2024. I emphasized the clusters and asterism with a mild star glow effect from the AstronomyTools actions set.