periapsis

DEFINITIONS OF: periapsis

1

n (astronomy) the point in an orbit closest to the body being orbited

Synonyms:
point of periapsis
Antonyms:
apoapsis, point of apoapsis
(astronomy) the point in an orbit farthest from the body being orbited
Types:
show 4 types...
hide 4 types...
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
Type of:
celestial point
a point in the heavens (on the celestial sphere)
WORD FAMILY
USAGE EXAMPLES