I tried to photograph the Northern Crown constellation last night (2024-05-10 23:40 UTC), but it was crossed by satellites several times:

satellite trail

aother satellite trail

Here are the parameters of both pictures: 24 mm, f/4, 10 sec, ISO 2500 Camera: Canon EOS 70D (astromodified) + Canon EF 24–105 mm f/4 L IS USM Position: 53.06414° N, 8.22809 W.

As I'd like to stack several pictures without the trails, how can I get rid of them quickly without throwing away relevant parts of the picture? Does Siril or another astrophoto software offer some kinda trail removal routine?

  • \$\begingroup\$ I really don't want to be that guy, but have you tried Google? I searched for "remove satellite trails from photos" and came up with a whole lot of solutions. \$\endgroup\$
    – Peter M
    May 12 at 17:00
  • 1
    \$\begingroup\$ If you are stacking several photos and the trails are more or less random, wouldn't they get suppressed in the averaging process? \$\endgroup\$ May 12 at 21:42
  • \$\begingroup\$ I wonder if the trails show up if you stacked the images. Ideally anything that is only present in one frame is removed anyway. \$\endgroup\$ May 13 at 8:31


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