The stars of Ursa Major, the Great Bear, over the waters of Peyto Lake, Banff, in deep twilight. Arcturus in B?otes, the Bear Driver, is setting over the peak at left. Ursa Major contains the seven stars that make up the Big Dipper, aka the Plough or the Wagon. This was October 13, 2022 on a very clear night in the Rocky Mountains. This is a stack of 6 x 30-second exposures for the ground and a single untracked 30-second exposure for the sky, all at f/2.8 with the Canon RF 15-35mm lens at 15mm, and Canon R5 at ISO 800.