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Q&A

Is it possible to have two or three planets in a stable orbit together?

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I have three planets. Let's call them Un, Deux and Trois.

Is it feasible for all three to be orbiting one another, close enough to be seen clearly by eye? All three are large enough to be earth equivalents.

What would the days be like? Let us say that each planet rotates once every 24 hours, performing an orbit with the other planets every three days? I'm thinking there would be hours/days of twilight as one planet blocked another.

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This post was sourced from https://worldbuilding.stackexchange.com/q/51503. It is licensed under CC BY-SA 3.0.

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