I read the Jupiter is so big that it doesn't really orbit the sun. Is that true?
Tell that to Juno
I'm a mere human with a small yamada how am I supposed to do that?
Not really, no. However, what is true is that any two objects orbit their common center of mass, called the barycenter. For the Earth-Sun system, that's a point inside the Sun, but for the Jupiter-Sun system, that is a point just outside the sun:
Thank you my friend.
Juno the spacecraft in orbit around Jupiter.
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