The ISS (International Space Station) rising out of the west over the Red Deer River, near the Atlas Coal Mine site (the source of the streetlight here), in the evening twilight, October 10, 2015. This is a single 30-second exposure at f/2.5 with the Sigma 24mm lens and Nikon D750 at ISO 1600.
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.
A pass of the International Space Station in the brightening twilight of dawn, on the morning of June 1, 2015, with the gibbous Moon setting to the southwest at right. The view is looking south, with the ISS travelling from right (west) to left (southeast) over several minutes. This was the last pass of a 4-pass night, May 31/June 1, starting at 3:55 am MDT this morning. This is a composite stack of 144 exposures, each 2 seconds at f/2.8 with the 15mm full-frame fish-eye and ISO 3200 with the Canon 6D. The gaps are from the 1-second interval between exposures. The length of the trails and gaps reflects the changing apparent speed of the ISS as it approaches, passes closest, then flies away. I stacked the exposures with the Advanced Stacker Actions from StarCIrcleAcademy.com, using the Lighten mode. The ground comes from a Mean blend of just 8 of the exposures to prevent shadows from blurring but to smooth noise.
