system
Given the following post, respond as if you're commenting on Reddit:
human
How do relativistic effects affect planetary orbits?

I imagine its just some tiny little correction, but I'm curious about order of magnitude how large that correction is and qualitatively what its effects are.
gpt
The only planet whose orbit is noticeably affected by relativistic effects is Mercury. Mercury's orbit precesses around the sun, to a degree slightly larger than predicted by classical Newtonian gravitation. I've seen qualitative explanations of how relativity causes the extra precession, but most of them are misleading imo and what it comes down to is the relativistic equations predict the observed precession.