• In lunar astronomy, libration is the cyclic variation in the apparent position of the Moon perceived by Earth-bound observers and caused by changes between...
    15 KB (1,671 words) - 23:40, 29 June 2024
  • Thumbnail for Libration (molecule)
    Libration (from the Latin verb librare "to balance, to sway"; cf. libra "scales") is a type of reciprocating motion in which an object with a nearly fixed...
    2 KB (229 words) - 23:24, 14 July 2022
  • Thumbnail for Lagrange point
    mechanics, the Lagrange points (/ləˈɡrɑːndʒ/; also Lagrangian points or libration points) are points of equilibrium for small-mass objects under the gravitational...
    50 KB (5,703 words) - 12:18, 8 July 2024
  • In orbital mechanics, a libration point orbit (LPO) is a quasiperiodic orbit around a Lagrange point. Libration is a form of orbital motion exhibited...
    3 KB (306 words) - 19:11, 15 April 2024
  • Thumbnail for Orbit of the Moon
    7° north of the equator and the north pole is visible. This is called libration in latitude. The nodes are points at which the Moon's orbit crosses the...
    37 KB (4,652 words) - 18:08, 16 April 2024
  • night to night, yet somewhat obvious in time-lapse photography. Lunar libration causes part of the back side of the Moon to be visible to a terrestrial...
    25 KB (2,766 words) - 05:39, 30 June 2024
  • Thumbnail for Halo orbit
    Category:Spacecraft using halo orbits Libration point orbit Robert Farquhar (1966). "Station-Keeping in the Vicinity of Collinear Libration Points with an Application...
    11 KB (1,104 words) - 16:53, 22 April 2024
  • Thumbnail for Moon
    lunar surface is visible over time due to cyclical shifts in perspective (libration), making parts of the far side of the Moon visible. The Moon has been...
    260 KB (25,037 words) - 09:54, 14 July 2024
  • Thumbnail for Derg
    The Derg (or Dergue; Amharic: ደርግ, lit. 'committee' or 'council'), officially the Provisional Military Administrative Council (PMAC), was the Marxist–Leninist...
    39 KB (4,297 words) - 17:14, 11 July 2024
  • Thumbnail for Lunar day
    A full lunar day observed from the Earth, where orbital libration causes the apparent wobble....
    5 KB (534 words) - 19:49, 13 July 2024