Gravity of Earth or (). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the object. Gravity does not normally include the gravitational pull of the Moon and Sun, which are accounted for in terms of tidal effects. It is a vector (physics) quantity, whose direction coincides with a plumb bob. A non-rotating perfect sphere of uniform mass density, or whose density varies solely with distance from the centre (spherical symmetry), would produce a gravitational field of uniform magnitude at all points on its surface. The Earth
Solar eclipses on the Moon portion of the eclipse was rising. Eclipses were more frequent, tens of millions of years later, eclipses became less numerous as the lunar orbit slowly moved away from the Earth. The view of the sun, even its chromosphere was blocked by the Earth. Around some hundreds of millions of years ago, the Earth blocked all of the Sun's chromosphere, totality was slightly longer than the partial portion. At the same time there were more partial eclipses on the Moon. As the Moon recedes about 3 cm each year, eclipse totality length slowly shrinks and the partial portion slowly lengthens. The