What is the smallest of the eight planets in the solar system?

Mercury is the smallest, and the eight planets in the solar system are arranged in descending order: Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury. Jupiter has a diameter of 142984 km and a mass of1.900e27kg.. Saturn has a diameter of 120536 km and a mass of 5.68e26kg.. Uranus has a diameter of 5 1 1 18km and a mass of 8.683e25.

The solar system is centered on the sun and other celestial bodies revolve around it? Stellar celestial system? In addition to the stellar sun, the solar system also includes planets, dwarf planets, satellites, asteroids, comets, interplanetary matter and so on. These celestial bodies together form a colorful solar system. There are always eight planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.