How to split up a very large sprite into parts?

I have a very large sprite however you never see all of it at once. I want to split it up into parts so I can only have part of it displaying at a time.

What I am overall trying to do is make a to scale solar system simulator where you can fly a to scale rocket ship around. My issue is that if I make my planets too large they have floating point errors and the colliders do not work. The issue comes from the size distance between a rocket and a planet. If there is a better way I would love to know.

Thanks!