I need some help studying for my Earth and Space Science exam tommorow. Any info you have on my question would be very apreciated, and would help me out a lot.
2007-11-01 13:38:55 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Because the moon is tilted by 6.7 degree
2007-11-01 15:16:04 · answer #1 · answered by Anonymous · 0⤊ 1⤋
This is the sidereal and synodic periods of the moon (respectively). The reason why there is a difference is because during this time the Earth has moved somewhat in its orbit of the sun. The sun is no longer in the same location relative to the Earth. The moon actually has to move more than one full orbit to catch back up to the sun and start a new lunation.
It's the same reason why the mean solar day is about 4 minutes longer than Earth's rotational period. It has to rotate slightly more than one full rotation to get the sun back to where it was before.
2007-11-01 13:43:47 · answer #2 · answered by Arkalius 5 · 4⤊ 1⤋
Because the moon accompanies the earth in its orbit around the sun.
So the moon's position with respect to the sun light will not be the exactly the same after each revolution around the earth.
2007-11-01 13:55:49 · answer #3 · answered by PragmaticAlien 5 · 0⤊ 1⤋
Because the whole system is also moving around
the sun.
2007-11-01 14:35:42 · answer #4 · answered by Irv S 7 · 0⤊ 1⤋