A satellite trail with the satellite tumbling perhaps to provide a pulsating trail as it traveled across the sky from north to south (left to right), varying up and down in brightness. This serve as an illustration of this type of satellite. It might be a spent rocket booster, not a working satellite. Taken as part of a time-lapse and stacking set for the Perseid meteor shower. These frames were shot over 6 minutes. The rising waning Moon is lighting the sky at right. This is a stack of 14 images for the satellite and sky, blended with Lighten mode, and 4 for the ground stacked with Mean mode to smooth noise. Shot from Dinosaur Provincial Park, Alberta, using the Canon 6D Mark II and Rokinon 14mm f/2.5 lens. 25 second exposures at ISO 3200.
A stack of 7 images recording the passage of a twin pair of satellites, upper right, traveling together in a parallel path. A small flaring satellite is also at left. This was taken from frames shot August 11 from home for the 2017 Perseid meteor shower. The Moon is about to rise at right, thus the bright glow on the horizon. Polaris is at upper left.
The International Space Station in a dawn pass, as it flies away to the east after passing overhead. This was the morning of July 15, 2017. Venus is the bright object at lower left; the overexposed waning Moon is at right. The Pleiades is above Venus, the Hyades cluster is just to the right of Venus. Capella is the bright star at far left. This is a composite stack of 24 exposures for the ISS, masked onto a single background image of the sky taken just before the ISS entered the frame. This kept the stars as points rather than trails, while the ISS trailed across the sky. The gaps are from the 2 second interval between 10-second exposures. All with the Canon 6D and 14mm Rokinon lens at f/2.5.
