A sky-covering display of Northern Lights, here in the western sky over a distant thunderstorm on the Alberta prairies. I shot this June 22, 2015 on a night with a grand display over most of the sky, with the sky bright with solstice twilight. The site was on the south shore of Crawling Valley Lake in southern Alberta. This is one frame from a 350-frame time-lapse, taken with the Nikon D750 and 24mm lens,
Summer solstice twilight and circumpolar star trails over the badlands of Dinosaur Provincial Park, Alberta. Some bright noctilucent clouds are visible low on the northern horizon. I shot this June 15, 2015 as part of a shoot for a “star trail” video tutorial, as an example image. This is a stack of the first 200 frames of 275 shot for a time-lapse, each 15 seconds at f/2.8 with the Rokinon 14mm lens and Canon 6D at ISO 1600. I stacked them in Advanced Stacker Actions with the ultrastreak mode. The foreground comes from a mean blend of the first 8 frames, to smooth noise, and to provide a brighter foreground from early in the sequence when the sky and ground were brighter.
A busy evening sky, with the two brightest planets, Venus (below) and Jupiter (above) shining in the western twilight, while the Space Station flies up from the west from botton to top, and a bright Iridium satellite flares across the frame at top. The Iridium flare appears through the Sickle of Leo, with the star Regulus below. This is a stack of 28 images taken as part of a time-lapse sequence, at a large interval to accommodate longer exposures later in the night, thus th elarge gaps in the satellite trails. The background sky (stars and planets) comes only from one frame to keep the stars and planets as pinpoints and not trailed. The ground comes from 8 of the frames, mean combined as a stack to smooth noise. Taken June 7, 2015 from southern Alberta, with the Nikon D750 and Sigma 24mm Art lens, at ISO 1600 and f/2.8 for 2.5 seconds each.
