Useful english dictionary. 2012.
periapsis — noun (astronomy) the point in an orbit closest to the body being orbited • Syn: ↑point of periapsis • Ant: ↑point of apoapsis (for: ↑point of periapsis), ↑apoapsis … Useful english dictionary
point of apoapsis — noun (astronomy) the point in an orbit farthest from the body being orbited • Syn: ↑apoapsis • Ant: ↑point of periapsis, ↑periapsis (for: ↑apoapsis) • Top … Useful english dictionary
periapsis — [per΄ē ap′sis] n. Astron. the nearest point to the gravitational center in the orbit of any satellite: see APOAPSIS * * * … Universalium
periapsis — [per΄ē ap′sis] n. Astron. the nearest point to the gravitational center in the orbit of any satellite: see APOAPSIS … English World dictionary
periapsis — noun The point of a bodys elliptical orbit about the systems centre of mass where the distance between the body and the centre of mass is at its minimum. In the case of other celestial bodies, specialised terms are used. See for details. Ant … Wiktionary
periapsis — low point of an orbit … Mechanics glossary
periapsis — n. point of an orbit when a satellite (or planet, star, etc.) is closest to the body being orbited (Astronomy) … English contemporary dictionary
periapsis — [ˌpɛrɪ apsɪs] noun (plural periapses si:z) Astronomy the point in the path of an orbiting body at which it is nearest to the body that it orbits … English new terms dictionary
celestial point — noun a point in the heavens (on the celestial sphere) • Hypernyms: ↑point • Hyponyms: ↑apex, ↑solar apex, ↑apex of the sun s way, ↑antapex, ↑apoapsis, ↑point of apoapsis, ↑ … Useful english dictionary
Argument of periapsis — The argument of periapsis (or argument of perifocus) ( ω ) is the orbital element describing the angle of an orbiting body s periapsis (the point of closest approach to the central body), relative to its ascending node (the point where the body… … Wikipedia
