A 220° panorama of the northern autumn constellations rising in the east at right, and the northern stars, including the Big Dipper at far left. From left to right, we see Ursa Major, Ursa Minor, Perseus, Cassiopiea, Cepheus, Andromeda, Pegasus, and Aquarius rising above Eagle Butte at Grasslands National Park. The Andromeda Galaxy, M31, is at centre. This was August 26, 2019. Lights from towns to the north of this Dark Sky Preserve light the northern horizon. However, green natural airglow does discolour the sky. The constellation patterns are a little distorted by the panorama projection geometry. This is a stitch of 13 segments, each with the 24mm Sigma lens at f/2 and Nikon D750 at ISO 6400, in portrait orientation, for 30 seconds each, and at 15° spacings. Stitched with ACR.
The MSM low-cost tracker being polar aligned with the laser pointer option. Illuminated with moonlight only from the rising waning Moon. Nikon D750 and Sigma 24mm lens, from home August 18, 2019.
The MSM low-cost tracker being polar aligned with the laser pointer option. Illuminated with red flashlight. Nikon D750 and Sigma 24mm lens, from home August 18, 2019.
