Question by Ravi: Do all the planets in our solar system orbit the sun in a single plane?
Do all the planets orbit the sun in a single plane, or do they have their own planes of orbit (forming an ellipsoid)?

I suspect that they are not all in a single plane. This is because, when we see the planets in the sky, we need to look above into the sky, each planet seen at various angles from the Earth’s horizon. Further, if all the planets were in the same plane we should not have been able to see them.

If they are not in a single plane, is it only for ease of representing that all pictures of the solar system depict the planets in a single plane with the sun?

Best answer:

Answer by Levi
They are very close to all being in the same plane, but slightly off. The reason we see planets up in the sky is because the earth is on a tilted angle, so it’s like we’re looking out with our heads tilted to one side which is why planets appear above the horizon.

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