point of periapsis
Also found in: Thesaurus.
Related to point of periapsis: Periapse
Switch to new thesaurus
|Noun||1.||point of periapsis - (astronomy) the point in an orbit closest to the body being orbited|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
celestial point - a point in the heavens (on the celestial sphere)
celestial orbit, orbit - the (usually elliptical) path described by one celestial body in its revolution about another; "he plotted the orbit of the moon"
perigee - periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth
perihelion - periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
perijove - periapsis in orbit around Jupiter