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 Solar eclipses on the Moon Solar eclipses on the Moon are caused when the Earth passes in front of the Sun, blocking its light. Viewers on Earth will see a lunar eclipse. The solar eclipses are only seen in the Nearside portion and smaller parts of the Farside where the Earth is seen during librations, making up the visible portion of the Moon and eclipses there are seen during the lunar sunrise and sunset as well as furthermost areas of the Nearside but mainly not in the polar areas of the Moon. As the Moon revolves around the Earth, the