Which planet's orbit marks the outer limit of the asteroid belt?

Prepare for the IAC Red Set Science Bee Test. Review with flashcards, multiple-choice questions, and detailed explanations. Excel on test day!

Multiple Choice

Which planet's orbit marks the outer limit of the asteroid belt?

Explanation:
The outer edge of the asteroid belt is set by the strong gravitational influence of a massive nearby planet. The belt sits between the orbits of Mars and Jupiter, and Jupiter’s gravity — especially through orbital resonances — destabilizes or ejects material beyond a certain distance. This limits the belt’s reach, so the boundary is governed by Jupiter’s perturbations rather than any other planet. That’s why Jupiter’s orbit marks the outer limit of the asteroid belt.

The outer edge of the asteroid belt is set by the strong gravitational influence of a massive nearby planet. The belt sits between the orbits of Mars and Jupiter, and Jupiter’s gravity — especially through orbital resonances — destabilizes or ejects material beyond a certain distance. This limits the belt’s reach, so the boundary is governed by Jupiter’s perturbations rather than any other planet. That’s why Jupiter’s orbit marks the outer limit of the asteroid belt.

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