point of periapsis

Thesaurus

Noun

1.

point of periapsis - (astronomy) the point in an orbit closest to the body being orbited periapsis 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 perilune, periselene - periapsis in orbit around the moon apoapsis, point of apoapsis - (astronomy) the point in an orbit farthest from the body being orbited