There are eight planets in our solar system. According to the distance from the sun, they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury is the closest planet to the sun. Venus is particularly bright. Earth is the most special planet inside. Life thrives. Mars is light red. Jupiter is the largest planet in the solar system. Its radius is 11 times that of Earth, its volume is 1316 times, and its mass is 318 times. Saturn has seven beautiful rings, especially beautiful, Uranus is blue-green, Neptune is light blue gas planet.
Pluto, once considered one of the “nine planets”, was defined as a “dwarf planet” on August 24, 2006. In addition, many smaller planets in the solar system are distributed in the asteroid belt between
Sorting is introduced:
1, Mercury: Mercury is the second to last among the nine planets, but it is the closest planet to the sun.
Venus: Venus is the second planet in the order of distance from the Sun, and a luminous object is seen over the West at any time of sunset. Venus itself does not shine; it reflects the light of the sun before it shines.
Earth: The Earth is the third planet from near to far from the sun, which is the only place among the nine planets suitable for life to live and multiply.
3. Mars: Mars is the fourth planet in the order from near to far from the sun, also known as the “red star”. As soon as it appears in the sky, you can see its faint red color.
4. Jupiter: Jupiter is the fifth planet in the order from near to far from the sun. It is the largest planet in the solar system. It is 11 times the radius of the earth, 1316 times the volume and 318 times the mass of the earth.
5, Saturn: Saturn according to the distance from the sun from near to far is the sixth, is the second largest planet in the solar system, it has seven beautiful rings, his rings are bright and eye-catching, so some people have made Saturn a “star beauty”.
6. Uranus: Uranus is the seventh planet from near to far from the sun, ranking the third among the nine planets in the solar system., Uranus is blue-green because its atmosphere contains methane.
Neptune: Neptune is the eighth possible planet to orbit the sun. He is a pale blue planet and is a typical gas planet.
How to define a planet has long been a controversial issue in astronomy. The IAU General Assembly adopted a new definition of “planet” on August 24, 2006. The definition includes three points. The planet is a celestial body that runs around the stars. The quality is large enough. It can rely on its own gravity to make the celestial bodies spherical. There is no other greater celestial body near its orbit.