perilune

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perilune

The spacecraft reaches its perilune above the lunar surface.

Definition

Noun: - The point in the orbit of an object around the Moon where it is closest to the Moon's center. This is the lunar equivalent of the term "perigee" used for orbits around Earth.

Usage
  • This is a technical term used primarily in the fields of astronomy, astronautics, and space mission planning.
  • It describes a specific orbital characteristic for spacecraft, satellites, or other celestial bodies circling the Moon.
Examples
Advanced Usage
  • "Perilune altitude": Refers to the height above the lunar surface at the closest orbital point.
    • A low perilune altitude is often desired for detailed lunar mapping.
  • The antonym is "apolune" (or "aposelene"), which is the point in a lunar orbit farthest from the Moon.
Variants and Related Words
  • Periapsis (n): The general term for the point in any orbit where the orbiting body is closest to the body it is orbiting.
  • Perigee (n): The point in an orbit around Earth where the orbiting body is closest to Earth.
  • Perihelion (n): The point in an orbit around the Sun where the orbiting body is closest to the Sun.
Synonyms
  • Lunar periapsis: A more descriptive synonym with the same meaning.
Notes
  • The term is constructed from the prefix "peri-" (meaning near) and "lune" (from Latin , meaning moon).
  • It is a highly specific term not commonly used in everyday language.
perilune

The spacecraft reaches its perilune above the lunar surface.

Noun
  1. periapsis in orbit around the moon

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