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  • Thumbnail for Mean anomaly
    coincide with τ, the time of pericenter passage. The classical method of finding the position of an object in an elliptical orbit from a set of orbital elements...
    10 KB (1,402 words) - 12:57, 1 September 2024
  • Thumbnail for Apsis
    Apsis (redirect from Pericenter)
    orbital altitude of the spacecraft above the surface of the central body (assuming a constant, standard reference radius). The words "pericenter" and "apocenter"...
    42 KB (3,906 words) - 14:59, 3 November 2024
  • Thumbnail for Sagittarius A*
    of pericenter passage, P is the orbital period in years and Kmag is the infrared K-band apparent magnitude of the star. q and v are the pericenter distance...
    73 KB (7,650 words) - 10:15, 10 November 2024
  • Thumbnail for S2 (star)
    S2 (star) (category Tests of general relativity)
    (Sgr A*), orbiting it with a period of 16.0518 years, a semi-major axis of about 970 au, and a pericenter distance of 17 light hours (18 Tm or 120 au) –...
    22 KB (2,296 words) - 11:11, 5 July 2024
  • orbital plane and with x̂ in the direction to the pericenter (periapsis). ẑ is perpendicular to the plane of the orbit. ŷ is mutually perpendicular to x̂ and...
    24 KB (3,178 words) - 17:40, 9 November 2024
  • Thumbnail for SMART-1
    SMART-1 (category Space programme of Sweden)
    reboots, finding the spacecraft in SAFE mode after every pericenter passage. The analysis of the spacecraft telemetry pointed directly to a radiation-triggered...
    32 KB (3,336 words) - 20:41, 7 November 2024
  • context) longitude of pericenter, in astronomy comoving distance, in cosmology P {\displaystyle \mathrm {P} } represents: one of the Gegenbauer functions...
    37 KB (3,441 words) - 16:38, 16 October 2024
  • fraction of an elliptical orbit's period that has elapsed since the orbiting body passed periapsis, expressed as the angular distance from the pericenter which...
    161 KB (18,470 words) - 08:08, 9 October 2024
  • Argument of periapsis – (also called argument of perifocus or argument of pericenter), symbolized as ω, is one of the orbital elements of an orbiting...
    195 KB (24,147 words) - 21:16, 23 October 2024
  • Thumbnail for C/1980 E1 (Bowell)
    Marcos, Raúl (1 November 2017). "Pole, Pericenter, and Nodes of the Interstellar Minor Body A/2017 U1". Research Notes of the AAS. 1 (1): 9 (2 pages). arXiv:1711...
    11 KB (916 words) - 01:33, 9 November 2024
  • Thumbnail for Orbital resonance
    Orbital resonance (category Wikipedia articles in need of updating from January 2021)
    result in small pericenters, typically leading to a collision or (for large moons) destruction by tidal forces. In an example of another type of resonance involving...
    97 KB (10,257 words) - 20:14, 24 October 2024
  • Thumbnail for Irregular moon
    Increasing eccentricity results in smaller pericenters and large apocenters. The satellites enter the zone of the regular (larger) moons and are lost or...
    39 KB (3,987 words) - 02:39, 15 November 2024
  • Thumbnail for Delta Cephei
    The mass of this companion is about one tenth of the mass of Delta Cephei and the two come to within 2 astronomical units at pericenter passage. The presence...
    21 KB (1,805 words) - 00:26, 3 September 2024