Translation guide
A Lagrangian point is a location in space where the gravitational forces of two large bodies balance the centrifugal force of a smaller object, allowing it to stay in a stable or semi-stable position relative to the two bodies. In Japanese, this is a technical term from astronomy and space science.
The standard scientific term for a Lagrangian point, used in astronomy, astrophysics, and space mission contexts.
The most common and standard term for Lagrangian point in Japanese. Used in scientific literature, news, and educational materials.
ジェイムズ・ウェッブ宇宙望遠鏡は、太陽-地球系のラグランジュ点L2に位置している。
The James Webb Space Telescope is located at the L2 Lagrangian point of the Sun-Earth system.
A less common, more literary or older term for Lagrangian point. Literally 'libration point'. May appear in older texts or very formal contexts.
秤動点は、制限三体問題における平衡点である。
Libration points are equilibrium points in the restricted three-body problem.
When discussing specific Lagrangian points (L1, L2, etc.), use the format 'ラグランジュ点L1' (reading: ラグランジュてんエルいち). The letter is pronounced as the English letter name, and the number as a Japanese numeral.
An alternative, slightly more colloquial term, often used in media or less formal contexts. Still widely understood.
ラグランジュポイントに宇宙ステーションを建設する計画がある。
There is a plan to build a space station at a Lagrangian point.