Reference: Planet Definition A planet is a celestial body that orbits a star, is spherical or nearly spherical in shape, and has cleared its orbit of other debris. In other words, a planet is a large object in space that is not a star and has sufficient mass to have achieved hydrostatic equilibrium, i.e., it has a rounded shape due to its own gravity. Additionally, a planet must be in orbit around a star and must not be a satellite (moon) of another planet. Finally, a planet must have cleared its orbit of any other debris, such as asteroids or comets. Examples of Planets There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Here are some basic…