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潮汐ロック

16 件の記事

Photograph of the far side of the Moon, with Mare Orientale (center left) and the mare of the crater Apollo (top left) being visible, taken by Orion spacecraft during the Artemis 1 mission.

月の裏側地球から見えない領域の正体と探査の歴史

月の裏側潮汐ロック嫦娥4号嫦娥6号
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The Moon orbiting around Earth (observed by the Deep Space Climate Observatory)

天然衛星の科学太陽系を彩る多様な「月」の世界

天然衛星月太陽系準惑星
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Artist conception of CoRoT-7b transiting yellow dwarf CoRoT-7

CoRoT-7b溶岩の海に覆われた「スーパーアース」の正体

CoRoT-7bスーパーアース系外惑星溶岩惑星
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Figure 1: Tidal interaction between the spiral galaxy NGC 169 and a smaller companion[1]

潮汐力とは何か？天体を歪ませる重力の差とその影響

潮汐力重力勾配ロッシュ限界潮汐ロック
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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月
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A full lunar day observed from the Earth, where orbital libration causes the apparent wobble.

月の一日（ルナ・デイ）とは？地球との違いや周期の仕組みを解説

月の一日ルナ・デイ朔望月恒星月
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Over one lunar month more than half of the Moon's surface can be seen from the surface of the Earth.

月面の揺れ「秤動（ひょうどう）」の仕組みと種類

秤動月天文学潮汐ロック
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Figure 1: Tidal interaction between the spiral galaxy NGC 169 and a smaller companion[1]

潮汐力とは何か？天体を歪ませる重力の差とその影響

潮汐力重力勾配ロッシュ限界潮汐ロック
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A picture of Earth and the Moon from Mars. The presence of the Moon (which has about 1/81 the mass of Earth), is slowing Earth's rotation and extending the day by a little under 2 milliseconds every 100 years.

潮汐加速と地球・月系のダイナミクス回転速度と軌道の変化

潮汐加速潮汐ブレーキ地球の自転月の軌道
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Derivative of −Δt. The axis on the right shows the length of the solar day.

会合日（太陽日）の仕組みと天体ごとの周期的な違い

会合日太陽日恒星日自転周期
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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
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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月
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