Question

Suppose an astronomer discovers a large, spherical-shaped body orbiting the Sun. The body is composed mostly of rock, and there are no other bodies sharing its orbit. What is the best way to categorize this body?

Answer 1

Solar planet in an undiscovered solar planet. With no other living organisms at its surroundings.

Answer 2

planet, The International Astronomical Union defines a planet as a spherical object that orbits a star. Planets clear the neighborhood around their orbits (i.e., no other bodies share their orbits).