I am trying to make renders of solar system planets, using realistic scales for them.
I have made Jupiter and its 4 main satellites. I have the right sizes for all of them but would like the distance between the satellites and Jupiter to be exact also.

Is there a way to lock the distance between two objects? I want to be able to move the satellites, but make sure they always stay on their orbit.

I have tried the track or link options, but they do not lock the distance between both objects (unless there is an option I did not see).

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