Overview

halo orbit


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An orbit in which a spacecraft will remain in the vicinity of a Lagrangian point. A halo orbit actually takes the form of a circular or elliptical loop around the Lagrangian point. The first spacecraft to use a halo orbit was the Solar and Heliospheric Observatory (SOHO), which was placed in an elliptical orbit with a semimajor axis of about 650 000 km around the L1 Lagrangian point between the Earth and Sun.

Subjects: Astronomy and Astrophysics.


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