A brief introduction to each planet. What planets have names?

The planets are: Earth, Venus, Uranus, Mars, Jupiter, Saturn, Neptune, Mercury, and Guardian.

Fourth, Encete. 6. The Sun, the Moon, Pluto, Sirius, the Big Dipper, Enceladus, Enceladus, Vega, Halley's Comet, the Sun-Skimming Comet, Neutron Stars, Neutron Binary Stars, Brown Dwarfs, Red Supergiants, Supernovae, Corndean, etc.

Earth: Earth is the third planet in the solar system from the inside and outside, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, about 100 million kilometers from the sun. The Earth rotates from west to east while revolving around the Sun.

At present, it is 100 million years old, and there is a natural satellite - the moon, and the two form a celestial system - the Earth-Moon system.

Venus: It is the second planet outward from the sun among the eight planets in the solar system, with an orbital period of heaven and no natural satellites. Venus was called Taibai, Xingxing or Da Huan in ancient China, and its appearance in the east in the morning was called Qiming, and its appearance in the west in the evening was called Chang Gung.

Uranus: One of the eight planets of the solar system, it is the seventh planet (astronomical unit) in the solar system from the inside out, its third largest in the solar system in terms of volume (larger than Neptune) and fourth in mass (smaller than Neptune), almost lying horizontally orbiting the sun.

Earth, Venus, Uranus, Mars, Jupiter, Saturn, Neptune, Mercury, Sun, Moon, Pluto, Sirius, Big Dipper, Enceladus, Enceladus, Vega, Halley's Comet, Sun-Skimming Comet, Neutron Star, Neutron Binary, Red Supergiant, etc.

1. Mercury is closest to the Sun and is the smallest planet in the solar system in terms of volume and mass. Often haunted at the same time as the sun, it was called "Chenxing" in ancient China. Mercury is smaller in diameter than Ganymede and Titan.

2. The sixth largest planet in the solar system and the hottest planet in the solar system, it was called Taibai or Taibai Star in ancient China. It is sometimes the morning star, and dawn appears in the eastern sky and is called "enlightenment"; Sometimes it is a twilight star again, and after dusk it appears in the western sky, which is called "Chang Gung".

3. The Earth is the third planet from the Sun and the fifth largest planet in the solar system, and the Earth is the densest planet in the solar system. The Earth, of course, does not need a craft to be observed, but we did not have a map of the entire planet until the twentieth century. The ** photographed from the space should be of reasonable importance; For example, they have greatly helped in weather forecasting and storm tracking forecasting.

4. Mars is the fourth closest planet to the Sun and the seventh largest planet in the solar system; In ancient China, it was called "Luminous Star", and the phenomenon of Mars "staying" in the heart is called Luminous Confusion and Guarding the Heart. Mars (Greek: Ares) is known as the god of war.

This may be due to its bright red color; Mars is sometimes referred to as the "Red Planet".

5. Jupiter is the fifth planet from the sun, called the year star in ancient China, because he orbits around exactly 12 years, that is, an earthly branch, Jupiter is the most massive of the planets in the solar system, its mass is the sum of all the other 7 planets, or 318 times the earth, the volume is 1316 times that of the earth, because of its huge volume, people can see it without a telescope, Jupiter is called "the king of the planets of the solar system". It has the fastest rotation speed in the entire solar system.

6. Saturn is the sixth farthest planet from the Sun and the second largest of the eight planets, known as "Zhenxing" in ancient China, and is the least dense planet in the solar system and can float on water.

7. Neptune is the eighth planet orbiting the Sun and the fourth largest celestial body in the Solar System (in diameter). Neptune is smaller than Uranus in diameter but has a greater mass.

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

It is already eight planets.