Neck Region

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A narrow passage near a collinear libration point that serves as the sole connection between the Earth region and the Moon region in cislunar space. The neck barely opens when Jacobi energy is just below C₁, permitting low-energy transfers; a second neck opening to the exterior region appears when energy drops below C₂.

Application Value

The Neck Region near a collinear libration point serves as the sole connection between the Earth region and the Moon region in cislunar space. The neck barely opens when Jacobi energy is just below C₁, permitting low-energy transfers. Understanding neck region dynamics is critical for trajectory design between Earth and Moon regions.

References

  • Liang et al. 2016
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Contributors: ouyangjiahong, Ou Yang Jiahong