タグ

系外惑星

27 件の記事

An elliptic, parabolic, and hyperbolic Kepler orbit: Elliptic (eccentricity = 0.7) Parabolic (eccentricity = 1) Hyperbolic orbit (eccentricity = 1.3)

軌道離心率天体の軌道形状を決定するメカニズム

軌道離心率ケプラー軌道天体力学楕円軌道
続きを読む →
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
続きを読む →
Retrograde orbit: the satellite (red) orbits in the direction opposite to the rotation of its primary (blue/black)

逆行運動のメカニズム天文学における回転と公転の不思議

逆行運動順行公転周期自転軸
続きを読む →
Artist's impression of a magnetosphere

磁気圏の仕組みと惑星保護のメカニズム

磁気圏太陽風地球磁場プラズマ物理学
続きを読む →
Understanding planetary habitability is partly an extrapolation of the conditions on Earth, as this is the only planet known to support life.

惑星の居住可能性生命を育む宇宙の条件と系外惑星の探究

惑星の居住可能性ハビタブルゾーン系外惑星アストロバイオロジー
続きを読む →
Evolutionary paths of Earth and Venus. Venus has been the prime example for a planet resembling Earth and how such a planet can differ.

地球型惑星（アース・アナログ）の探求第二の地球を求めて

地球型惑星アース・アナログハビタブルゾーン系外惑星
続きを読む →
Gas giant formation in the protoplanetary disk around young star HD 100546 (Artist's impression).[1]

一次大気の形成メカニズムと惑星進化への影響

一次大気原始大気原始惑星系円盤ガス集積
続きを読む →
Retrograde orbit: the satellite (red) orbits in the direction opposite to the rotation of its primary (blue/black)

逆行運動のメカニズム天文学における回転と公転の方向性

逆行順行天文学公転方向
続きを読む →
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
続きを読む →
An artist's concept of a planetary system

惑星系とは何か太陽系から系外惑星まで広がる宇宙の構造

惑星系太陽系系外惑星ハビタブルゾーン
続きを読む →
Diagram of transits of Venus and the angle between the orbital planes of Venus and Earth

金星の太陽面通過宇宙の距離を解き明かした稀有な天文現象

金星太陽面通過天文単位天文学
続きを読む →
Image of the transit taken by NASA's Solar Dynamics Observatory spacecraft. Venus is in the upper right quadrant

金星の日面通過（2012年）稀有な天文現象の記録と科学的意義

金星日面通過天文現象NASA
続きを読む →