• Thumbnail for Hill sphere
    The Hill sphere is a common model for the calculation of a gravitational sphere of influence. It is the most commonly used model to calculate the spatial...
    26 KB (2,917 words) - 08:03, 17 October 2024
  • the sphere of activity which extends well beyond the sphere of influence. The most common base models to calculate the sphere of influence is the Hill sphere...
    14 KB (1,409 words) - 01:38, 31 October 2024
  • the Spheres) Dyson sphere, a hypothetical megastructure that encompasses a star and captures a large percentage of its solar power output Hill sphere, the...
    5 KB (626 words) - 22:13, 3 November 2024
  • (a period of 1 month and 27 days) it will pass just outside Earth's Hill sphere (roughly 0.01 AU [1.5 million km; 0.93 million mi]) at a low relative...
    8 KB (435 words) - 13:58, 18 October 2024
  • Thumbnail for Lagrange point
    equal distances r from the smaller object, equal to the radius of the Hill sphere, given by: r ≈ R μ 3 3 {\displaystyle r\approx R{\sqrt[{3}]{\frac {\mu...
    51 KB (5,703 words) - 01:24, 30 October 2024
  • Thumbnail for Sphere eversion
    In differential topology, sphere eversion is the process of turning a sphere inside out in a three-dimensional space (the word eversion means "turning...
    12 KB (1,126 words) - 22:16, 30 June 2024
  • Thumbnail for Oort cloud
    cosmographic boundary of the Solar System. This area is defined by the Sun's Hill sphere, and hence lies at the interface between solar and galactic gravitational...
    56 KB (6,182 words) - 16:43, 31 October 2024
  • Thumbnail for Irregular moon
    {\displaystyle r_{H}} . The radius of the Hill sphere is given in the adjacent table: Uranus and Neptune have larger Hill sphere radii than Jupiter and Saturn, despite...
    39 KB (3,985 words) - 20:46, 17 September 2024
  • Thumbnail for Solar System
    as Comet West, have aphelia around 70,000 AU from the Sun. The Sun's Hill sphere with respect to the galactic nucleus, the effective range of its gravitational...
    222 KB (21,885 words) - 00:25, 4 November 2024
  • surface of a sphere of tungsten half a metre in radius would travel at slightly more than 1 mm/s, completing an orbit every hour. If the same sphere were made...
    17 KB (2,059 words) - 22:31, 24 October 2024
  • Thumbnail for Earth's orbit
    surface covered by water in the southern hemisphere. The Hill sphere (gravitational sphere of influence) of the Earth is about 1,500,000 kilometers (0...
    17 KB (1,874 words) - 04:15, 29 October 2024
  • Thumbnail for Apsis
    Archived July 29, 2017, at the Wayback Machine is also common (e.g., McGraw Hill Dictionary of Scientific and Technical Terms, 5th edition, 1994, p. 114)...
    42 KB (3,906 words) - 14:59, 3 November 2024
  • Thumbnail for Io (moon)
    plasma torus (discussed below) and by other processes into filling Io's Hill sphere, which is the region where Io's gravity is dominant over Jupiter's. Some...
    114 KB (12,540 words) - 03:55, 17 October 2024
  • Thumbnail for Outer space
    potentials from other bodies, is the body's sphere of influence or gravity well, mostly described with the Hill sphere model. In the case of Earth this includes...
    138 KB (13,570 words) - 13:53, 31 October 2024
  • Thumbnail for Parabolic trajectory
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    7 KB (1,091 words) - 22:08, 14 October 2024
  • Thumbnail for Exomoon
    a synchronous orbit around the planet is outside the Hill sphere of the planet. The Hill sphere of the planet is the region where its gravity dominates...
    34 KB (4,121 words) - 09:17, 2 November 2024
  • Thumbnail for True anomaly
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    8 KB (1,111 words) - 11:49, 10 July 2024
  • equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    11 KB (1,410 words) - 01:29, 7 October 2024
  • Thumbnail for Riemann sphere
    In mathematics, the Riemann sphere, named after Bernhard Riemann, is a model of the extended complex plane (also called the closed complex plane): the...
    22 KB (3,313 words) - 06:43, 20 October 2024
  • Thumbnail for Lunar orbit
    insufficient and three-body models are required. Although the Moon's Hill sphere extends to a radius of 60,000 km (37,000 mi), the gravity of Earth intervenes...
    16 KB (1,721 words) - 00:05, 26 September 2024
  • Thumbnail for Escape velocity
    typically used to determine whether an object will remain in the gravitational sphere of influence of a given body. For example, in solar system exploration it...
    28 KB (3,658 words) - 16:51, 29 September 2024
  • Thumbnail for Orbital inclination
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    11 KB (1,465 words) - 15:40, 23 October 2023
  • Thumbnail for Light-year
    Szirtes (1997), Applied dimensional analysis and modeling, New York: McGraw-Hill, p. 60, ISBN 978-0-07-062811-3 Comins, Neil F. (2013), Discovering the Essential...
    24 KB (1,930 words) - 16:04, 18 October 2024
  • planētēs), expressing the fact that these objects move across the celestial sphere relative to the fixed stars. Therefore, the Greeks were the first to develop...
    24 KB (1,935 words) - 05:16, 2 November 2024
  • Thumbnail for Tsiolkovsky rocket equation
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    25 KB (4,354 words) - 10:30, 28 October 2024
  • such a way that it appears to orbit Earth, but well outside Earth's Hill sphere, making it a quasi-satellite. The orbit of 2023 FW13 has a one-to-one...
    5 KB (214 words) - 19:04, 10 April 2024
  • Thumbnail for Lissajous orbit
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    8 KB (766 words) - 12:21, 22 August 2024
  • Thumbnail for Roche limit
    Chandrasekhar limit Spaghettification (the extreme case of tidal distortion) Hill sphere Sphere of influence (black hole) Black hole Triton (moon) (Neptune's satellite)...
    13 KB (1,514 words) - 19:38, 24 October 2024
  • Thumbnail for Semi-major and semi-minor axes
    equation Celestial mechanics Gravitational influences Barycenter Hill sphere Perturbations Sphere of influence N-body orbits Lagrangian points (Halo orbits)...
    17 KB (2,374 words) - 13:06, 24 October 2024
  • Thumbnail for Kepler's laws of planetary motion
    in a laborious attempt to determine what he viewed as the "music of the spheres" according to precise laws, and express it in terms of musical notation...
    60 KB (8,839 words) - 04:22, 25 October 2024