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Minimum, mean and maximum distances of the Moon from Earth with its angular diameter as seen from Earth's surface, to scale The instantaneous lunar distance is constantly changing. The actual distance between the Moon and Earth can change as quickly as 75 meters per second , [ 20 ] or more than 1,000 km (620 mi) in just 6 hours, due to its non ...
The Moon orbits Earth in the prograde direction and completes one revolution relative to the Vernal Equinox and the fixed stars in about 27.3 days (a tropical month and sidereal month), and one revolution relative to the Sun in about 29.5 days (a synodic month).
English: Illustration of Earth and Moon at the average distance from each other (semi-major axis) as seen from distant space If the preview width is 800 pixels wide, then each pixel is 500 km on the preview. This image is almost identical in proportions to File:Earth-Moon2.jpg
The English proper name for Earth's natural satellite is typically written as Moon, with a capital M. [19] [20] The noun moon is derived from Old English mōna, which stems from Proto-Germanic *mēnōn, [21] which in turn comes from Proto-Indo-European *mēnsis 'month' [22] (from earlier *mēnōt, genitive *mēneses) which may be related to the verb 'measure' (of time).
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Moon distance range to scale Image title Minimum, mean and maximum distances of the Moon from Earth with its angular diameter as seen from Earth's surface, to scale by CMG Lee.
Some moons, minor planets and comets of the Solar System to scale (major planets not to scale) Selected moons, with Earth to scale. ... Moon: Earth: I (1) 1.022: 1,738:
The Moon, Io and Earth shown to scale. Although significantly smaller, some of the Solar System's moons and dwarf planets share similarities to Earth's density and temperature. The index can be calculated for objects other than planets, including natural satellites, dwarf planets and asteroids. The lower average density and temperature of these ...