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what is moon

2007-07-29 19:40:26 · 7 answers · asked by meenu 1 in Science & Mathematics Astronomy & Space

7 answers

Moon is the only natural satellite of Earth,revolving around it.

2007-07-29 23:35:50 · answer #1 · answered by rashid 2 · 0 1

The Moon (Latin: Luna) is Earth's only natural satellite and the fifth largest moon in the Solar System. The average centre-to-centre distance from the Earth to the Moon is 384,403 kilometres (238,857 miles),a which is about 30 times the diameter of the Earth. The Moon has a diameter of 3,474 kilometres (2,159 miles)[1] — slightly more than a quarter that of the Earth. This means that the volume of the Moon is only 1/50th that of Earth. The gravitational pull at its surface is about a 1/6th of Earth's. The Moon makes a complete orbit around the Earth every 27.3 days, and the periodic variations in the geometry of the Earth–Moon–Sun system are responsible for the lunar phases that repeat every 29.5 days.

The gravitational attraction, and the centrifugal forces generated by the rotation of the Moon and Earth around a common axis, the barycentre, is largely responsible for the tides on Earth. The energy dissipated in generating tides is directly responsible for the reduction[dubious – discuss] in potential energy in the Moon-Earth orbit around the barycentre, resulting in a 3.8 cm yearly increase in the distance between the two bodies.[2] The Moon will continue to move slowly away from the Earth until the tidal effects between the two are no longer of significance, whereupon the Moon's orbit will stabilise.

The Moon is the only celestial body that humans have travelled to and landed on. The first artificial object to escape Earth's gravity and pass near the Moon was the Soviet Union's Luna 1, the first artificial object to impact the lunar surface was Luna 2, and the first photographs of the normally occluded far side of the Moon were made by Luna 3, all in 1959. The first spacecraft to perform a successful lunar soft landing was Luna 9 and the first unmanned vehicle to orbit the Moon was Luna 10, both in 1966.[1] The U.S. Apollo program has achieved the first (and only) manned missions to date, resulting in six landings between 1969 and 1972.

2007-07-29 21:14:58 · answer #2 · answered by ♥★pinky★♥ 4 · 1 0

Moon is the natural satellite of earth wrapped it on an orbit in a distance of 380000 kilometers far away from earth.Other planets in the solar system have their moons too.

2007-07-30 01:52:19 · answer #3 · answered by nhojzamora 2 · 0 1

Any natural satellite with considerable size revolving around any planet can be called as moon.

2007-07-29 21:04:55 · answer #4 · answered by Arasan 7 · 1 1

it is also a natural satellite near earth. Other planets have moons too.

2007-07-29 19:45:51 · answer #5 · answered by Kathryn 4 · 1 1

its the thing you see at night.
Try this site might help you out

2007-07-29 19:47:03 · answer #6 · answered by Pearl Wagoner 3 · 0 2

it's when you pull down your pants, bend over, and wave ur butt at someone

2007-07-29 19:44:23 · answer #7 · answered by Anonymous · 2 2

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