タグ

潮汐ロック

16 件の記事

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の鈍化と軌道の変化

潮汐加速潮汐ブレーキ地球の自転月の公転
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
The Man in the Moon is struck by a spacecraft in the Georges Méliès 1902 fantasy film Le Voyage dans la Lune

月の模様「ムーン・フェイス」の正体と世界各地の伝承

月の模様パレイドリアムーン・フェイス月うさぎ
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
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
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
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
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
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

秤動天文学潮汐ロック
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
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