<p class="MDPI12title"><span lang="EN-US" style="mso-fareast-font-family: SimHei; mso-fareast-language: ZH-CN;">Various Phenomena Caused by the Separation of the Planet's Gravity Point and Center of Mass

This article proposes the equivalent spherical surface of the planet emitting gravitons and the gravitational action point of the planet, and explains the separation phenomenon of the gravitational action point and the center of mass. Taking the earth and moon as an example, the moon's gravitational point is at a radius of 0.5 on the side of the earth. Due to the separation of the earth-moon gravitational point on the moon and the moon's center of mass, the earth's gravity acts on the moon's gravitational point, causing the moon to generate a centripetal force orbiting the earth, and at the same time, the moon will generate a counter-rotation force. Regarding the rotation of the moon, since the point of gravitational force is relatively fixed, the center of mass of the moon rotates in the opposite direction relative to the point of gravitational force of the earth and the moon. According to the law of conservation of momentum, the linear velocity of the Moon orbiting the Earth caused by gravity is equal to the linear velocity of the Moon rotating around the gravitational point of action caused by gravity. They are reflected in the angular velocity of the Moon orbiting the Earth being equal and opposite. This is the fundamental reason for the conservation of angular momentum in the Moon's revolution. Under the combined action of the inertial force of the moon's movement, the centripetal force of its movement around the Earth, and the moon's rotation in the opposite direction around the gravitational point of action, the moon's revolution will form an elliptical orbit. This article simulates the elliptical orbit of the moon orbiting the earth and the eight planets orbiting the sun. Through derivation and calculation, more than 99% of the gravitational force exerted on the planet is used for the rotation of the planet. Phenomena related to the gravity between planets include: 1. The formation of elliptical orbits, 2. Gravity coefficient, 3. The precession and orbital precession of planets, 4. The tumbling of 'Oumuamua and artificial satellites, 5. Seasonal changes and cyclical changes in the Earth's rotation; 6. The long-term slowdown of the Earth's rotation; 7. The sun's orbital motion is strongly related to changes in the Earth's rotation rate; 8. The rapid reverse rotation of the Earth's core; 9. The synchronous rotation of the moon. Through the analysis of this article, these phenomena are related to the separation phenomenon of the planet's gravity point and center of mass.