SUNSET: 
0
Photographer:
Joerg Tomczak
Location of Photo:
Guelpe, Germany
Date/Time of photo:
2026-03-18 18:09 UT
Equipment:
8" Sky-Watcher Quattro f/4 200/800, ZWO ASI642MC + UV/IR-Cut Filter, Celestron CGX Mount
Description:
This composite traces the real-time motion of the International Space Station as it crossed near Jupiter’s position in the sky. The station swept through the frame in only about 0.41 seconds, reaching an apparent size of roughly 46 arcseconds — slightly larger than Jupiter’s 40 arcsecond disk at the time. Each ISS position is taken from an individual, unaltered frame of the high speed video recording, preserving the true geometry and timing of the pass. Jupiter was processed separately from the same video by stacking 30% of the best 3511 frames to manage the extreme brightness difference. The stacked Jupiter image and the ISS frames were then combined in Affinity Photo 2, all derived from the same raw data.
