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Viventine Space Systems
VIVENTINE SPACE SYSTEMS
Space Regulatory Glossary Orbital Mechanics

halo orbit

/ˈheɪloʊ ˈɔːrbɪt/ noun

  1. A periodic, three-dimensional orbit around a Lagrange point that traces a closed path when viewed from the primary bodies. Halo orbits allow spacecraft to remain near a Lagrange point while avoiding the point's instability.
  2. Used by missions such as the James Webb Space Telescope (L2 halo orbit) and the Lunar Gateway (near-rectilinear halo orbit around the Moon).

Related terms

Lagrange point One of five positions in a two-body orbital system (such as Earth-Sun or Earth-Moon) where the gravitational forces and…

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