Size Ordering of the Eight Planets in the Solar System

The size of the eight planets in the solar system is Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury.

The expansion of the origin of the eight planets in the solar system;

According to the new definition of planet adopted by the General Assembly of the International Astronomical Union on August 24, 2006, a planet refers to a celestial body that orbits the sun and its own gravity is enough to overcome its rigid physical force, make it spherical and clear other objects near its orbit.

Among the nine traditional planets in the solar system, only Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune meet these requirements. Pluto is automatically downgraded to a dwarf planet because its orbit intersects Neptune's orbit and does not conform to the new definition of a planet.

Extension of the basic introduction of the eight planets in the solar system;

1, four earth-like planets

There are four terrestrial planets in the solar system. All planets are mainly composed of silicate rocks, and all have solid surfaces. The four major types of terrestrial planets are Mercury, Venus, Earth and Mars. The diameter of the earth is 12756 km, which is 1.05 times that of Venus, 1.88 times that of Mars and 2.6 times that of Mercury.

2. Four giant gas planets

Except for terrestrial planets, the other four planets in the solar system are gas giants. They are not giant planets mainly composed of rocks or other solids. The four gas giants are Jupiter, Saturn, Uranus and Neptune in descending order of size.