KnowraHalo orbitLinked fromLinked fromThe 5 pages that link to Halo orbit, each with the reason it gives.All 5Broader topic 3Compared with 2Lagrange pointBroader topic: Spacecraft often orbit near the point rather than attempt to station-keep exactly at it.Restricted three-body problemBroader topic: Halo orbits are recurring solutions near the model's unstable collinear equilibria.Solar and Heliospheric ObservatoryBroader topic: SOHO circles L1 in a halo orbit rather than sitting motionless at the point.