Could a gas giant have a stable orbit within the asteroid belt?
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By a stable orbit I mean not getting ejected by the other planets or ejecting them, Let's create a scenario where Neptune occupies an orbit in the asteroid belt at 2.76 AU, Ceres average distance from The Sun. Since the distance of the asteroid belt varies from 1.78 to 4.2 AU, I decided to use the orbit of Ceres 2.76 AU for the placement of Neptune. If this swap happened immediately how fast would it take for Neptune to clear an orbit? And how bright would Neptune appear to the naked eye from Earth?
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