The orbit of the moon around the earth is close to a circle, so we can find the mass of the earth The orbit of the moon around the earth is close to a circle. Its orbit radius is 384000km, and its revolution period is 2360000s. We can find the mass of the earth

The orbit of the moon around the earth is close to a circle, so we can find the mass of the earth The orbit of the moon around the earth is close to a circle. Its orbit radius is 384000km, and its revolution period is 2360000s. We can find the mass of the earth

Because the revolution period is 2360000s
So the angular velocity is (2 * 3.14) / 2360000s
So the centripetal acceleration a is ((2 * 3.14) / 2360000s) ^ 2 * 38400000m
Because a = m earth * g / (R ^ 2) (r = 384000000 meters, gravitational formula)
So m = A / (g / (R ^ 2))

The orbit of the moon around the earth is close to a circle, with a radius of 3.84 times 10 to the fifth power of kilometers. The revolution period is 27.3 days, and the centripetal acceleration of the moon around the earth is 0

According to the acceleration formula: a = 4 π ^ 2 * r / T ^ 2 = 4 π ^ 2 * 384000000 / (27.5 * 24 * 3600) ^ 2 = 0.0027m/s ^ 2

The ecliptic is the earth's orbit around the sun, and the moon's orbit around the place,

The orbital plane of the moon's orbit around the earth is called the white plane