Last Updated：2025/12/07

(astronomy) The orbital plane passing through a planetary system's barycenter (center of mass) perpendicular to its angular momentum vector.

音声機能が動作しない場合はこちらをご確認ください

See correct answer

invariable plane

Source Word

invariable plane

(astronomy) The orbital plane passing through a planetary system's barycenter (center of mass) perpendicular to its angular momentum vector.

Japanese Meaning

天体系の重心を通り、その角運動量ベクトルに直交する軌道面

The simulations showed that the exoplanet's orbit gradually aligned with the system's invariable plane over millions of years.

シミュレーションは、その系の外惑星の軌道が何百万年かけて系の重心を通り角運動量ベクトルに垂直な不変軌道面と徐々に整列していくことを示した。

Sense（1）

(astronomy) The orbital plane passing through a planetary system's barycenter (center of mass) perpendicular to its angular momentum vector.

invariable planes

（ plural ）