There is NOT an eclipse every time the Moon circles the Earth. The Moon's orbit around the Earth is slightly inclined at about 5 degrees from the "ecliptic", or the plane of the Earth's path around the Sun. If the Moon's orbit were in the same plane, then there would be a solar eclipse at every new moon, and a lunar eclipse at every full moon - but this doesn't happen.
So we only get eclipses when the Moon happens to be either new or full as it is passing through the plane of the ecliptic. If the alignment is pretty close, then we'll have a total eclipse; if the alignment is a little off, then we may get a partial eclipse or no eclipse at all.
On average, there are two solar eclipses and two lunar eclipses every month. You can see the catalogue of all eclipses on the NASA Eclipse Web Site at the link below.
As I write this on May 6, 2012, the next solar eclipse is a annular solar eclipse (the alignment is good, but the Moon is far away) in 2 weeks on May 20, 2012. Two weeks after THAT, there will a partial lunar eclipse on June 4, 2012, which will be visible from Europe, Western and Central Asia, and Africa. Only about 30% of the lunar disk will be in the Earth's shadow. Since I live in California, my best view of it will be on the Web, or on TV.
The Moon.
it takes exactly one year for the earth to travel around the sun
The earth makes one revolution every year. Earth ORBITS around the sun.
The sun does not travel around the Earth, Earth travels around the sun. The Earth rotates once every 24 hours.
The earth makes one revolution every year. Earth ORBITS around the sun.
Because the Moon's orbit around the Earth is not in the plane of the Earth's orbit around the Sun. The Moon's orbit is tilted at approximately 5 degrees to the Earth's orbit around Sun. As the Moon orbits the Earth, it is usually either "above" or "below" the Earth's orbital plane around the Sun. Greg
If the orbit of the Moon was level with the orbit of the Earth around the Sun, there would be a solar eclipse at every new moon, and a lunar eclipse at every full moon.
The moon travels around the earth in a counterclockwise direction. The moon moves from west to east. It moves around 12 degrees towards east in Earth's sky every day.
When the Moon gets directly between the Sun and the Earth, as it generally does about every 6 months, we have a solar eclipse. The Moon is much smaller than the Earth, and the Moon's shadow is smaller yet, so only a small area of the Earth is in the shadow. But the Moon is moving and the Earth is spinning, so the affected area of the Earth travels west to east along a track called the "path of totality", which is different for every eclipse.
no they happen around the world almost every year and i dont believe that were going to be here on this earth for millions of years
The Moon orbits around the Earth on an angle so it usually does not go directly behind the Earth. When it does move directly behind the earth, that is when we see a lunar eclipse.
Because the moon's orbit is 'offset' from the horizontal path of the the Earth travelling around the sun. The three objects have to be in alignment for an eclipse to occur.