why does the moon move around the earth and not the earth round the moon?

Question

what make the moon revolve round the earth

Answer 1

The earth and moon move around a point called the barycenter. This point is well inside the earth. This is because the earth is much more massive than the moon. (Moon's mass=1/81 times the mass of the earth)

So the earth does not seem to move around the barycenter. The moon does, since it very far way from this point.

Answer 2

Both revolve around the center of mass of the Moon and Earth taken together. That center of mass happens to be inside the Earth, because the Earth is much more massive than the Moon.

Answer 3

In reality, the earth and the moon revole around a common center of gravity or mass. This point is within the earth but not at its center. So viewed from space, the Earth-Moon system seems to "wobble"

This fact can be appiled to any orbiting bodies, however it becomes complex when there are three or more. Even the sun will appear to "wobble" if observed from afar. This is one way that extrasolar (planets around another star) are found.

Answer 4

And to make your mind hurt just a bit more... When you jump in the air, it's not only you falling to the Earth, but the Earth coming towards you. However, the Earth being SO much more massive, it's impossible to actually measure it coming towards you.

But your question is related to another question astronomers have wonder about for years, and that's whether or not planets could form around a binary star system (two stars that are orbiting each other). At first it was believe to be too unstable, but recently they've been able to see that it is actually very hospitiable to planet formation.

Answer 5

The Earth revolves around the Sun, which has a very large gravitational pull due to its size, and Earth also has a gravitational pull, though smaller than the Sun's, and that pulls in the Moon.

Answer 6

Because the moon is smaller than the earth and likewise for all other planets to the sun.

Answer 7

The earth is Bigger and has more mass therefore more gravity, They are actually rotating around eachother but since the earth is much bigger the center of balance is closer to the earth

Answer 8

Because the Moon is not a planet. Moons orbit around planets. Some planets have more Moons than others.

Answer 9

the earth's gravity is what makes the moon revolve around us.
why not the moon's gravity? bc the earth is bigger.just like we revolve around the sun bc its bigger

Answer 10

the moon is in the earth's orbit because the earth has more mass. remember that gravity varies inversly as the square of its distance or it varies directly as the product of its mass.