English Explanatory Dictionary

halo orbit

English dictionary entry

Meanings

noun
  1. A periodic, three-dimensional orbit about any one of the Lagrange points L₁, L₂ or L₃ of a two-body gravitational system.

Word forms

halo orbit halo orbits

Etymology

First used by NASA mission specialist Robert W. Farquhar in 1966 for calculated orbits around the Earth–Moon L₂ point which required the use of thrusters to be made periodic.

Related words

Lissajous orbit Lyapunov orbit
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