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2006•Journal of AstronauticsRequires access

The Application of Libration Points and Halo Orbits in the Earth-Moon System to Space Mission Design

Shijie Xu

Open publisher page 8 citations

Abstract

The L_1 libration point and the halo orbit around the L_2 point in the Earth-Moon system play an important role in exploring the Moon.It can link the Earth with the nearside and farside of the Moon,respectively.The dynamics of the Earth-Moon system is quite different from the Sun-Earth system especially after a long duration for the gravitational attraction of the Sun.This paper deals with the problem of entering the L_1 point and the halo orbit of the L_2 point,as well as entering the low orbit around the Moon by means of the Sun's gravitation.Then a low energy lunar transfer orbits is obtained from the two latter entering orbits.This study is of high value for orbit design for lunar exploration.

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What this paper is about

The L_1 libration point and the halo orbit around the L_2 point in the Earth-Moon system play an important role in exploring the Moon.It can link the Earth with the nearside and farside of the Moon,respectively.The dynamics of the Earth-Moon system is quite different from the Sun-Earth system especially after a long duration for the gravitational attraction of the Sun.This paper deals with the problem of entering the L_1 point and the halo orbit of the L_2 point,as well as entering the low orbit around the Moon by means of the Sun's gravitation.Then a low energy lunar transfer orbits is obtained from the two latter entering orbits.This study is of high value for orbit design for lunar exploration.

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OpenAlex reports 8 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The L_1 libration point and the halo orbit around the L_2 point in the Earth-Moon system play an important role in exploring the Moon.It can link the Earth with the nearside and farside of the Moon,respectively.The dynamics of the Earth-Moon system is quite different from the Sun-Earth system especially after a long duration for the gravitational attraction of the Sun.This paper deals with the problem of entering the L_1 point and the halo orbit of the L_2 point,as well as entering the low orbit around the Moon by means of the Sun's gravitation.Then a low energy lunar transfer orbits is obtained from the two latter entering orbits.This study is of high value for orbit design for lunar exploration.

Key concepts: Halo orbit, Libration (molecule), Lagrangian point, Orbit (dynamics), Halo, Astrobiology, Physics, Earth's orbit

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The Application of Libration Points and Halo Orbits in the Earth-Moon System to Space Mission Design — Research Paper | ScholarLens