Eight planets in the galaxy.

The eight planets in the Milky Way are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

There are many planets in the vast galaxy, eight of which are familiar to human beings. What are the eight planets in the Milky Way? Let's get to know each other.

Details 0 1 Mercury (English: Mercury, Latin: Mercury, symbol:? ), among the eight planets in the solar system, Mercury is the closest planet to the sun. China called them stars. It orbits the sun once every 87.968 Earth Days and rotates once every 2.0 1 for 3 times. Among the planets in the solar system, Mercury has the largest orbital inclination.

Venus (English Venus, Pinyin J, NX and NG), one of the eight planets in the solar system, is also called Taibai, Golden Star or Pleiades.

The earth is one of the eight planets in the solar system, ranking third in the order from near to far from the sun. It is also the earth-like planet with the largest diameter, mass and density in the solar system, which is 654.38+0.5 billion kilometers away from the sun. The earth rotates from west to east and revolves around the sun at the same time.

Mars (English: Mars, Latin: Martis, symbol: ♂) is one of the eight planets in the solar system, the fourth planet from the inside out, belonging to the Earth-like planet, with a diameter of about 53% and a mass of 1 1% of the Earth. Due to the axial tilt, the rotation period is similar to that of the earth, and one circle is about twice that of the earth.

Jupiter (English: Jupiter, Latin: Iovi, symbol:? ) is the largest and fastest rotating planet among the eight planets in the solar system, and the fifth farthest planet from the sun. Its mass is one thousandth of that of the sun and 2.5 times that of the other seven planets in the solar system combined. Because Jupiter, Saturn, Uranus and Neptune are all gaseous planets, they are also collectively called woody planets (Jupiter and Saturn are collectively called gaseous giant planets).

Saturn (English: Saturn, Latin: Saturnus, symbol:? ), one of the eight planets in the solar system, ranks sixth in the solar system in distance from the sun. Saturn is a gas giant planet, which was called Li Xing in Europe and ancient Greece (ancient Greek: κ ρ? νο? ; English: Chronos), Saturn was called Ascension in ancient China.

Uranus (English: Uranus, Latin: Uranum, symbol:? Or? ), one of the eight planets in the solar system, is the seventh planet in the solar system from the inside out (18.37~20.08 astronomical units), ranking third in the solar system (greater than Neptune) and fourth in mass (less than Neptune), and revolving around the sun almost horizontally.

Neptune (English: Neptune, Latin: Neptunium, symbol:? ) is one of the eight planets in the solar system. The semi-major axis of Neptune's orbit is 30. 1 astronomical unit (ranked 8th in planets of the solar system), its mass is 17. 1 earth mass (3rd), and its radius is 3.9 times that of radius of the earth (4th).