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同期回転

7 件の記事

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天体の極とは?回転軸から磁気極まで、宇宙の方向定義を解説

天体の極回転軸国際天文学連合不変平面
At left, tidally locked, the Moon rotates at the same rate it orbits the Earth, keeping the same face toward the planet. At right, not tidally locked, if the Moon did not rotate then the face would change over the course of an orbit. Viewed from north; not to scale.

潮汐ロックの仕組みと宇宙における影響

潮汐ロック同期回転天文学
Earth's rotation imaged by Deep Space Climate Observatory, with axis tilt

天体の自転周期恒星日と太陽日の違いから惑星の回転まで

自転周期恒星日太陽日差動回転
At left, tidally locked, the Moon rotates at the same rate it orbits the Earth, keeping the same face toward the planet. At right, not tidally locked, if the Moon did not rotate then the face would change over the course of an orbit. Viewed from north; not to scale.

潮汐ロックの仕組みと宇宙における影響

潮汐ロック同期回転天文学
At left, tidally locked, the Moon rotates at the same rate it orbits the Earth, keeping the same face toward the planet. At right, not tidally locked, if the Moon did not rotate then the face would change over the course of an orbit. Viewed from north; not to scale.

潮汐ロックの仕組みと宇宙における影響

潮汐ロック同期回転自転周期公転周期
Earth's rotation imaged by Deep Space Climate Observatory, with axis tilt

天体の自転周期恒星日と太陽日の違いから惑星の回転まで

自転周期恒星日太陽日差動回転
At left, tidally locked, the Moon rotates at the same rate it orbits the Earth, keeping the same face toward the planet. At right, not tidally locked, if the Moon did not rotate then the face would change over the course of an orbit. Viewed from north; not to scale.

潮汐ロックの仕組みと宇宙における影響

潮汐ロック同期回転天体力学