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Hi. I need 10 Facts on the moon.
please help.

2007-10-18 17:22:20 · 4 answers · asked by sshecklerlover13 1 in Science & Mathematics Astronomy & Space

4 answers

-tidally locked (rotation and orbit are synchronised)
-largest 'planet to moon' ratio in the solarsystem
-no atmosphere
-furthest 'body' humans have ever traveled to!
-max impact density, Further asteroid impacts usually just cover up old impact craters.
-size and distance from earth allows for ideal solar eclipses.
-home to a mirror left by astronauts which you can bouce a laser off to measure the distance.
-It actually is getting FURTHER AWAY, and not closer as is mentioned below.
-believed to be created by an early earth impact which excavated its material into orbit, eventually coalescing into said moon. (breaking free on its own would have required as much propulsion as a modern Space Rocket, as the mass of earth hasnt changed all that much since its formation)
-made of cheese

2007-10-18 17:27:22 · answer #1 · answered by AlCapone 5 · 6 2

1. Its a natural sattelite.
2. Its orbit around the earth is elliptical (Oval). NOT circular. Despite what others say... There is no such thing as a circular orbit in our solar system!!
3. Its diameter is 3,500km.
4. Its 380,000km away.
5. It takes 27.3 days to orbit earth.
6. It takes 27.3 days to completely orbit on its axis.
7. Therefore it has a captured rotation, so we only ever see one side of it.
8. Altogether we can see 59% of the moons surface over 27.3 days, due to orbital libration. Not just 50%.
9. There is a mirror left on the moon by astronauts to measure how far away the moon is due to reflection back. (Time taken).
10. Its slowly getting further away, escaping our earths gravity very slowly.

Hope this helps.

2007-10-19 11:03:11 · answer #2 · answered by Anonymous · 0 0

The Giant Impactor Theory (sometimes called The Ejected Ring Theory): This theory proposes that a planetesimal (or small planet) the size of Mars struck the Earth just after the formation of the solar system, ejecting large volumes of heated material from the outer layers of both objects. A disk of orbiting material was formed, and this matter eventually stuck together to form the Moon in orbit around the Earth. This theory can explain why the Moon is made mostly of rock and how the rock was excessively heated. Furthermore, we see evidence in many places in the solar system that such collisions were common late in the formative stages of the solar system.

The Moon's orbit (its circular path around the Earth) is indeed getting larger, at a rate of about 3.8 centimeters per year.

The reason for the increase is that the Moon raises tides on the Earth. Because the side of the Earth that faces the Moon is closer, it feels a stronger pull of gravity than the center of the Earth. Similarly, the part of the Earth facing away from the Moon feels less gravity than the center of the Earth. This effect stretches the Earth a bit, making it a little bit oblong. We call the parts that stick out "tidal bulges." The actual solid body of the Earth is distorted a few centimeters, but the most noticable effect is the tides raised on the ocean.

Now, all mass exerts a gravitational force, and the tidal bulges on the Earth exert a gravitational pull on the Moon. Because the Earth rotates faster (once every 24 hours) than the Moon orbits (once every 27.3 days) the bulge tries to "speed up" the Moon, and pull it ahead in its orbit. The Moon is also pulling back on the tidal bulge of the Earth, slowing the Earth's rotation. Tidal friction, caused by the movement of the tidal bulge around the Earth, takes energy out of the Earth and puts it into the Moon's orbit, making the Moon's orbit bigger (but, a bit pardoxically, the Moon actually moves slower!).

2007-10-18 17:30:57 · answer #3 · answered by Jake B 4 · 3 4

sshecklerlover13:
just check out
http://en.wikipedia.org/wiki/Moon

for the others, if you stop accusing each other of thumbs down, you won't fell like adding to them. Your answers certainly don't deserve thumbs down.
Well, maybe eelfins's is lazier than usual as I have seen good answers from you elsewhere. But still OK.

There are a few people going around any science category, thumbing down anyone who gives a scientific answer. They themselves are not providing answer (lest they be discovered, I guess).

2007-10-18 18:49:43 · answer #4 · answered by Raymond 7 · 2 1

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