• Thumbnail for 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...
    26 KB (3,144 words) - 13:59, 8 May 2025
  • Thumbnail for Gravity wave
    wave orbit. Gravity waves on an air–sea interface of the ocean are called surface gravity waves (a type of surface wave), while gravity waves that are...
    18 KB (2,568 words) - 22:40, 1 May 2025
  • Thumbnail for Gravity of Earth
    in newtons per kilogram (N/kg or N·kg−1). Near Earth's surface, the acceleration due to gravity, accurate to 2 significant figures, is 9.8 m/s2 (32 ft/s2)...
    32 KB (3,826 words) - 10:21, 3 June 2025
  • Thumbnail for Gravity darkening
    higher surface gravity, and thus higher temperature and pressure is needed to maintain hydrostatic equilibrium. Thus, the poles are "gravity brightened"...
    3 KB (330 words) - 21:06, 13 March 2025
  • Thumbnail for Clairaut's theorem (gravity)
    Clairaut's theorem characterizes the surface gravity on a viscous rotating ellipsoid in hydrostatic equilibrium under the action of its gravitational...
    16 KB (1,844 words) - 07:07, 18 April 2025
  • propagating on the water surface, with gravity and surface tension as the restoring forces. As a result, water with a free surface is generally considered...
    30 KB (3,434 words) - 18:07, 14 April 2025
  • Thumbnail for Supergiant
    spectra, with distinctive lines sensitive to high luminosity and low surface gravity. In 1897, Antonia C. Maury had divided stars based on the widths of...
    40 KB (5,378 words) - 22:07, 13 May 2025
  • Thumbnail for Gravity of Mars
    The gravity of Mars is a natural phenomenon, due to the law of gravity, or gravitation, by which all things with mass around the planet Mars are brought...
    53 KB (6,282 words) - 00:06, 9 April 2025
  • Thumbnail for List of Solar System objects by size
    radius and mass and, for the most massive objects, volume, density, and surface gravity, if these values are available. These lists contain the Sun, the planets...
    258 KB (10,944 words) - 15:48, 9 June 2025
  • Thumbnail for Gravity
    Earth's rotation. Gravity gives weight to physical objects and is essential to understanding the mechanisms responsible for surface water waves and lunar...
    83 KB (8,799 words) - 02:52, 5 June 2025
  • The gravity anomaly at a location on the Earth's surface is the difference between the observed value of gravity and the value predicted by a theoretical...
    20 KB (2,991 words) - 10:20, 12 May 2025
  • Thumbnail for Mars
    Mars (redirect from Mars surface features)
    permafrost and ice caps (with seasonal CO2 snow), but no liquid surface water. Its surface gravity is roughly a third of Earth's or double that of the Moon....
    209 KB (18,461 words) - 20:56, 15 May 2025
  • Thumbnail for World Geodetic System
    depends on the local gravity field (see physical geodesy). As a result, the elevations in the data are referenced to the geoid, a surface that is not readily...
    24 KB (2,842 words) - 03:41, 26 April 2025
  • Thumbnail for Work (physics)
    forces, gravity results in a constant downward acceleration of every freely moving object. Near Earth's surface the acceleration due to gravity is g =...
    51 KB (8,112 words) - 14:23, 26 May 2025
  • Thumbnail for Gravimetry
    Gravimetry (redirect from Gravity meter)
    is defined as approximately equal to the acceleration due to gravity at the Earth's surface, although the actual acceleration varies slightly by location...
    26 KB (3,197 words) - 15:09, 10 May 2025
  • Thumbnail for Stellar classification
    letter beta (β) for intermediate surface gravity and gamma (γ) for low surface gravity. Indication for low surface gravity are weak CaH, KI and NaI lines...
    107 KB (11,666 words) - 20:59, 10 June 2025
  • Thumbnail for Star
    A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked...
    147 KB (16,423 words) - 20:22, 31 May 2025
  • Thumbnail for Colonization of the asteroid belt
    colony could be established on a surface crater or underground. However, even Ceres only manages a tiny surface gravity of 0.03g, which is not enough to...
    27 KB (2,862 words) - 21:53, 6 June 2025
  • Thumbnail for Brown dwarf
    letter beta (β) for intermediate surface gravity or gamma (γ) for low surface gravity. Indicators of low surface gravity include weak CaH, K I and Na I...
    166 KB (18,303 words) - 06:40, 11 June 2025
  • and its core is made up of collapsed matter. The surface gravity is very high at 665 times Earth gravity at the poles, but the rapid rotation produces a...
    38 KB (3,744 words) - 02:10, 31 May 2025
  • Thumbnail for Gravity hill
    A gravity hill, also known as a magnetic hill, mystery hill, mystery spot, gravity road, or anti-gravity hill, is a place where the layout of the surrounding...
    4 KB (416 words) - 21:03, 5 May 2025
  • Thumbnail for Black hole thermodynamics
    mechanics are expressed in geometrized units. The horizon has constant surface gravity for a stationary black hole. For perturbations of stationary black...
    25 KB (3,223 words) - 06:04, 1 June 2025
  • Thumbnail for Ganymede (moon)
    Titan, it is larger than the planet Mercury, but has somewhat less surface gravity than Mercury, Io, or the Moon due to its lower density compared to...
    111 KB (10,667 words) - 09:30, 7 June 2025
  • Thumbnail for Escape velocity
    67×10−11 m3⋅kg−1⋅s−2‍) g = GM/d2 is the local gravitational acceleration (or the surface gravity, when d = r). The value GM is called the standard gravitational parameter...
    28 KB (3,648 words) - 13:53, 3 February 2025
  • Thumbnail for Mercury (planet)
    least massive planet of the Solar System, its surface gravity is slightly higher than that of Mars. The surface of Mercury is similar to Earth's Moon, heavily...
    156 KB (16,137 words) - 14:21, 10 June 2025
  • Thumbnail for Wind wave
    Wind waves in the ocean are also called ocean surface waves and are mainly gravity waves, where gravity is the main equilibrium force. Wind waves have...
    49 KB (6,251 words) - 18:56, 30 May 2025
  • Thumbnail for Moon
    overall, and larger and more massive than all known dwarf planets. Its surface gravity is about one-sixth of Earth's, about half that of Mars, and the second-highest...
    270 KB (26,422 words) - 20:51, 7 June 2025
  • Additionally, there can be similar gravity modes confined to the convectively stable atmosphere. Surface gravity waves are analogous to waves in deep...
    51 KB (5,445 words) - 01:38, 26 November 2024
  • Thumbnail for Saturn
    that the effective surface gravity along the equator, 8.96 m/s2, is 74% of what it is at the poles and is lower than the surface gravity of Earth. However...
    119 KB (10,645 words) - 13:05, 10 June 2025
  • Thumbnail for Black hole
    black hole is a massive, compact astronomical object so dense that its gravity prevents anything from escaping, even light. Albert Einstein's theory of...
    165 KB (18,730 words) - 02:13, 6 June 2025