perigee 7 Associations

periapsis (generic term) point of periapsis (generic term) apogee (antonym)

perihelion 10 Associations

periapsis (generic term) point of periapsis (generic term) aphelion (antonym)

perijove 8 Associations

periapsis (generic term) point of periapsis (generic term) apojove (antonym)

perilune 8 Associations

periselene periapsis (generic term) point of periapsis (generic term) apolune (antonym) aposelene (antonym)

periselene 10 Associations

perilune periapsis (generic term) point of periapsis (generic term) apolune (antonym) aposelene (antonym)