The arch of the northern spring Milky Way across the eastern sky, as seen on a beautifully clear and mild spring night at Dinosaur Provincial Park, Alberta on May 14, 2018. The galactic centre in Sagittarius is at right to the south. Jupiter is the bright object in the southwest at far right; above it Arcturus. The Summer Triangle stars are rising in the east at centre, including bright blue-white Vega at top centre. The Big Dipper is at far left. Due north and the North Star are at left toward the faint yellow-green and magenta glow of aurora on the horizon. Little of the aurora was visible to the eye. Bands of green and red airglow colour the sky at centre and at right to the south. The distinct and sharp-edged band of airglow was present all through the shooting session. This is a stitch of 21 segments, in 3 tiers of 7 each, taken with the Syrp Genie Mini controller in panorama mode, but with the camera manually raised from 0° to 30° to 60° altitude for each of the three tiers. The Mini did the azimuth panning and shutter control automatically. All exposures were 30 seconds at f/2.8 with the Sigma 20mm Art lens and Nikon D750 at ISO 6400. Stitching was with PTGui which did the job fast and seamlessly.
The light pollution of the city of Medicine Hat, Alberta vs the natural sky glows of the Milky Way at right and a dim aurora. The urban sky glow looks like a sunset or sunrise but this was taken after midnight when the sky was very dark, from the Horseshoe Canyon viewpoint in Cypress Hills Interprovincial Park, Alberta, a Dark Sky Preserve within its boundaries. The Big Dipper sits above the urban sky glow. The Pleiades is rising at right. This is a 2-segment panorama with the 14mm Rokinon lens and Canon 6D.
Leo rising in the east along with the northern hemisphere spring stars. The Big Dipper is at upper left, with the handle pointing down to Arcturus at bottom left. The Bowl of the Dipper points down to the right to Regulus and the stars of Leo. Above Leo is the star cluster M44, the Beehive, in Cancer. Below Leo at centre is the star cluster Mel 111, the Coma Berenices star cluster near the North Galactic Pole. Numerous satellite trails are visible. I didn’t clone them out. This is a vertical panorama of 4 frames, with the 20mm Sigma Art lens at f/2 and 25 seconds at ISO 3200 with the Nikon D750. Stitched with PTGui using Transverse Equirectangular projection.
