Circumlunar trajectory

Sketch of a circumlunar free return trajectory (not to scale).

A circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft from Earth, around the far side of the Moon, and back to Earth using only gravity once the initial trajectory is set.

单词	Circumlunar trajectory
释义	Circumlunar trajectory 英语百科 Circumlunar trajectory A circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft from Earth, around the far side of the Moon, and back to Earth using only gravity once the initial trajectory is set.
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