A stack of 450 or so images taken during the first half of the night, on December 5, 2015, of the winter stars turning about the North Celestial Pole from Arizona, from the Quailway Cottage near Portal, Arizona. Polaris is near centre. The ground comes an average stack of 8 of the last frames. Stacking performed with the Advanced Stacker Plus actions (using UltraStreaks) in Photoshop. Each exposure was 45 seconds at f/2.8 with the 15mm full-frame fish-eye, and Canon 6D at ISO 2500.
Orion, at right, rising in star trails behind the old plough, at home, on a bright moonlit night in November, with light from a waxing gibbous Moon. Procyon is just rising above the horizon at left. Clouds from incoming winter weather bringing snow are intruding at right. Exposures started about 7:30 pm with Orion just starting to rise, and ended at about 10 pm with Orion at upper right in the frame. This is a stack of 350 images for the stars, each 20 seconds at f/5.6 with the 35mm lens Canon L-series lens and Canon 6D at ISO 1600. A final single exposure added the more point-like stars at the ends of the trails. The ground comes from a stack of 8 frames in the sequence, mean combined, to reduce noise. All stacking with the Advanced Stacker Plus actions, with the Long Streaks effect, from StarCircleAcademy.com.
The Big Dipper trailing across the northern sky over ForgetMeNot Pond in Kananaskis Country, in southern Alberta, on a moonlit autumn night in September 2015. This is a stack of two exposures: 30 seconds at f/4 and ISO 1250 for the short point-like stars followed by an 8-minute exposure at f/5.6 at ISO 160, both with the 24mm lens and Nikon D750. LENR used on both images.
