✔ 最佳答案
en, maybe the moon love the earth.
Distance matters. The moon is only 240,000 miles from the Earth; it's 93,000,000 miles away from the sun.
At those distances, the Earth's gravity is a much stronger influence on the moon than the sun's gravity. So it orbits the Earth
It does, just not directly.
The Moon does around the Sun!
(does what? I don't know. But I know the Moon orbits around the Sun).
F = G M m /d^2
This is the gravitational force between two bodies, one of mass M, the other of mass m, the distance between them is d.
G is just a constant to make the units work out, when you try to come out with numbers.
Calculate the force between Sun and Moon:
Fs = G Ms m / (ds)^2
Between Earth and Moon:
Fe = G Me m/ (de)^2
If the force due to Earth was greater than the force due to the Sun, you would expect the fraction Fe/Fs to be greater than 1.
Fe/Fs = [G Me m/ (de)^2] / [G Ms m / (ds)^2]
where:
Me is mass of Earth,
Ms is mass of Sun = 332,946*Me
de is distance Earth Moon (centre to centre), approx. 384,400 km
ds is distance to the Sun (approx. 150,000,000 km)
G is a constant (it cancels out)
Let's clean up
Fe/Fs = G/G * Me/Ms * [(ds)/(de)]^2
The distances get flipped because they were in the denominators of each element before the overall division.
G/G = 1 (the G cancels out)
Me/Ms = 1/332946
[(ds)/(de)]^2 = (150million/384400)^2 = (390.22)^2 = 152,270.5
Fe/Fs = 384400/152270.5 = approx. 0.396
Earth pull on the Moon is smaller than the pull from the Sun.
By a factor of approximately 2.5
However, the Moon is too close to Earth to free itself from Earth's interference. It is "condemned" to stay close to us. Relative to Earth, it has insufficient energy to reach escape velocity from Earth.
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A long time ago, someone tried to have the pair declared a "double planet" because of that, but the astronomers decided that the criteria would be the location of the "barycentre" (the common centre of gravity of both objects taken as a single system). If it is inside one of the bodies, then that body is the planet while the other is a satellite.
If it is outside any of the bodies, then it is a "double" whatever.
Pluto and Charon form a "double dwarf planet" because their barycentre is outside Pluto (and outside Charon).
For us, the barycentre is well inside Earth. Don't worry, it is only a mathematical location; it does not affect anything inside Earth.
I think words left out you did.
it is due to the gravity difference
Why doesn't the moon around the sun? Aborted babies burn in hell for 33 and a half years; if pregnant, keep the kid and deliver at home because kids are chipped using ivs and vaccines in hospitals. Abortion leads to breast cancer; a demon is released from hell for each aborted kid. Dogs can become possessed; don't keep dogs inside you home [Pelageya of Ryazan]. Walmart has technology to administer mark of the beast to those who have cat bacteria in their stomachs; stay away from cats [Afanasiy Sidyachiy]. Next false flag is the Statue of Liberty. Earth is flat; stands on 3 pillars (the Most Holy Trinity); pillars stand on water at zero Kelvin. Zodiac is planetary prison of demons; don't believe in horoscopes or you'll exhibit the traits of the trapped demons. Most thoughts and dreams are from demons; demons never do good. Sleep fully clothed; pray the Jesus prayer. Pray to your guardian angel to have normal sleep. Vyacheslav Krasheninnikov was the last prophet before Enoch and Elijah return to preach against the antichrist. Humans were created about 7525 years ago.
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i think.the moon is only satellite of earth.
I have a question for you.
Why don't you study the English language?
Your question does NOT make a bit of sense AT ALL !!!!!!!
Why doesn't the moon do WHAT around the Sun?
The moon is earth's moon. It is held by earth's gravity, not by the sun's gravity. No "moon" can orbit the sun, if it did, it would not be a moon. If something as large as the moon orbited the sun it would be a dwarf planet
Nothing can ever "around" anything else. "Around" is not that sort of word. I assume you mean "go around". Always check your typing before you send anything.