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  2. Gravitation of the Moon - Wikipedia

    en.wikipedia.org/wiki/Gravitation_of_the_Moon

    The acceleration due to gravity on the surface of the Moon is approximately 1.625 m/s 2, about 16.6% that on Earth's surface or 0.166 ɡ. [1] Over the entire surface, the variation in gravitational acceleration is about 0.0253 m/s 2 (1.6% of the acceleration due to gravity).

  3. Moon - Wikipedia

    en.wikipedia.org/wiki/Moon

    The whole surface area of the Moon is about 38 million square kilometers, comparable to that of the Americas. [70] [71] The Moon's mass is 1 ⁄ 81 of Earth's, [72] being the second densest among the planetary moons, and having the second highest surface gravity, after Io, at 0.1654 g and an escape velocity of 2.38 km/s (8 600 km/h; 5 300 mph).

  4. Lunar Surface Gravimeter - Wikipedia

    en.wikipedia.org/wiki/Lunar_Surface_Gravimeter

    The Moon in a general sense exhibits very little seismic activity but particularly in the frequency bands suited to the study of gravitational waves, the moon exhibits a noise level orders of magnitude lower than found on Earth. [31] [32] [33] Areas on the Moon's surface that are in permanent shadow, such as at the lunar poles, are thermally ...

  5. Surface gravity - Wikipedia

    en.wikipedia.org/wiki/Surface_gravity

    The surface gravity, g, of an astronomical object is the gravitational acceleration experienced at its surface at the equator, including the effects of rotation. The surface gravity may be thought of as the acceleration due to gravity experienced by a hypothetical test particle which is very close to the object's surface and which, in order not to disturb the system, has negligible mass.

  6. Io (moon) - Wikipedia

    en.wikipedia.org/wiki/Io_(moon)

    Io (/ ˈ aɪ. oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.

  7. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    Alan Stern calls these satellite planets, although the term major moon is more common. The smallest natural satellite that is gravitationally rounded is Saturn I Mimas (radius 198.2 ± 0.4 km ). This is smaller than the largest natural satellite that is known not to be gravitationally rounded, Neptune VIII Proteus (radius 210 ± 7 km ).

  8. Geology of the Moon - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Moon

    Geological studies of the Moon are based on a combination of Earth-based telescope observations, measurements from orbiting spacecraft, lunar samples, and geophysical data. . Six locations were sampled directly during the crewed Apollo program landings from 1969 to 1972, which returned 382 kilograms (842 lb) of lunar rock and lunar soil to Earth [8] In addition, three robotic Soviet Luna ...

  9. Lunar Traverse Gravimeter - Wikipedia

    en.wikipedia.org/wiki/Lunar_Traverse_Gravimeter

    The Lunar Traverse Gravimeter was a lunar science experiment, deployed by astronauts on the lunar surface in 1972 as part of Apollo 17.The goal of the experiment was to use relative gravity measurements to infer potential attributes about the geological substrata near the Apollo 17 landing site.