Abdid is an astronomer who has been observing objects that orbit the Sun in the asteroid belt. He finds a previously undiscovered round, rocky object that is not similar in shape to the rest of the asteroids. What has Abdid most likely found?

A round, rocky object orbiting the Sun in the asteroid belt is most likely a dwarf planet. Its round shape distinguishes it from most asteroids, which are too small to become spherical. A moon orbits a planet, and a comet is mainly made of ice and dust.

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