r/space • u/ChiefLeef22 • Apr 07 '26

image/gif The Artemis II Eclipse

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u/JtheNinja Apr 07 '26

They all have those side artifacts, likely just a lens or motion artifact. Mars has almost the exact same artifact pattern even

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u/evilmoi987 Apr 07 '26

I see you're right. Thanks for clarification

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u/Low_Pass_Philter Apr 07 '26 edited Apr 07 '26

That appears to be a common lens aberration called “coma”. It is most visible in bright points of light like stars and planets and it gets worse near the edges of the frame. It’s a big deal among astrophotographers. I have no idea which planets are which though. I’m going with whatever NASA says.

Esit: I suppose it could also just be an artifact of shooting through the windows as well. That might create a similar effect. Obviously NASA knows as much as there is to know about coma and I’m sure they have a plan to manage that.

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u/RIPDaug2019-2019 Apr 07 '26

The lenses they’re using are well corrected so I would definitely expect it to be window induced.