1, "The West Rock with Faults Going its Own Way" Qingshan can't recruit, who will pity you? In winter, I often go to the stream by the mountain. The moon comes from the top of the mountain, high above. Go to Qingxi every night and listen to Li Sao.

2. "Listening to Lu playing the piano on a moonlit night", sitting under the bright moon at night, you play the pipa. Suddenly I heard the tune of "Very Taiwan", which seemed to be the voice of "Han Song". The fingering of Snow White makes your delicate hands busy, and the syllable of "green water" really nourishes your heart. Unfortunately, Zhong Ziqi has long since passed away, and there is no such confidant in the world.

3. The Bright Moon is a double mirror of the bright moon and the sky, and clear lake has ten thousand bows. Walking outside the willow tree, I am drawing. The sky is wide and the eyes are quick, and the building is high and harmonious. So the mountains are better, Liu Ying Furong.

The bright moon in the "bright moon" ring stops at the beginning of noon, so it is impossible to hang a virtual window. I only saw the shadow of a pair of phoenix trees, and the atrium was covered with green shade.

5, "Bright Moon" is bright and bright, with insufficient load and surplus, and my wine is in court.

First, the moon

1. The moon is the fifth largest satellite in the solar system, with an average radius of about1737,438+00 kilometers, equivalent to 0.273 times that of radius of the earth. The mass is close to 7.342× 10 kg, which is 0.0 123 times that of the earth.

The surface of the moon is covered with craters, which may be formed by the impact of small celestial bodies. The average distance between the moon and the earth is about 384,400 kilometers, which is about 30 times the diameter of the earth.

Second, orbital motion.

1, revolution, the moon moves around the earth in a circular orbit. The great circle cut by this orbital plane on the celestial sphere is called "White Road". The ecliptic plane is neither coincident with the celestial equator nor parallel to the ecliptic plane, and its spatial position is constantly changing.

2. Rotation: The moon rotates around the earth with a period of 27.5438+066 days, which happens to be a sidereal moon, so we can't see the back of the moon. This phenomenon, which we call "synchronous rotation" or "tidal locking", is almost a universal law in the satellite world of the solar system.

3. nutation: the orbital plane of the moon (ecliptic plane) keeps an included angle of 5. 145396 with the orbital plane of the earth, while the rotation axis of the moon forms an included angle of 1.5424 with the normal of the ecliptic plane.

4. Libra, because the rotation period of the moon is exactly the same as that of its revolution, the earth can only see that the moon always faces the earth with the same face. From the early days of the formation of the moon, the earth was affected by a moment, which led to the slow rotation speed. This process is called tidal locking.