#point_of_periapsis__periapsis__periapsi  (astronomy) the point in as orbit closest to the body being orbited
  exclusion:  point_of_apoapsis
  supertype:  celestial_point  a point in the heavens (on the celestial sphere)
  part of:  celestial_orbit
  subtype:  perigee  periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth
  subtype:  perihelion  periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
  subtype:  perijove  periapsis in orbit around Jupiter
  subtype:  periselene__perilune  periapsis in orbit around the moon

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