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
Total eclipses on the Moon than on Earth with up to around 2.8 hours. Some total-partial eclipses have a most, half or a part of the Moon being in the center of the Earth's shadow. Unlike the Earth which it umbral shadow shows black, as the Moon has no atmosphere, the surface appears red because the only sunlight available is refracted through the Earth's atmosphere on the edges of the earth as it is shown in the sky in a painting by Lucien Rudaux. Total eclipses on the Moon Total solar eclipses on the Moon are caused when the Earth passes in front of the