English Dictionary

gravity assist

IPA（発音記号）

/ˈɡɹævɪti əˈsɪst/

名詞

(astrophysics) The favorable alteration of the speed and trajectory of a spacecraft as a result of its passing near to a celestial body.

日本語の意味

宇宙船が天体の近傍を通過する際、その天体の重力を利用して、速度や軌道を有利に変化させる天体力学の手法。

The probe executed a gravity assist around Venus to gain velocity and redirect its trajectory toward the outer planets.

探査機は金星でスイングバイを行い、速度を稼いで軌道を外惑星へ向けて変えた。

意味（1）

(astrophysics) The favorable alteration of the speed and trajectory of a spacecraft as a result of its passing near to a celestial body.

After going into orbit around Jupiter with a gravity assist from the volcanic moon Io, Galileo will spend 22 months studying the planet.

gravity assists （ plural ）