Previous Year Question

Ceres is the only dwarf planet located in the inner Solar System. According to NASA, Ceres lies in the main asteroid belt between Mars and Jupiter, which distinguishes it from the other recognized dwarf planets that are located in the outer Solar System.

Ceres was discovered in 1801 by Italian astronomer Giuseppe Piazzi. It was initially regarded as a planet, later classified as an asteroid, and in 2006 it was classified as a dwarf planet. It is about 940 km in diameter and is the largest object in the asteroid belt.
Another important fact is that NASA's Dawn spacecraft entered orbit around Ceres in 2015, making Ceres the first dwarf planet to be orbited by a spacecraft.