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重力アシスト

5 件の記事

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MBRエクスプローラーUAEが挑む小惑星帯への壮大な旅

MBRエクスプローラーアラブ首長国連邦小惑星帯宇宙探査
2026年8月11日続きを読む →
The four components of the BepiColombo Mercury Composite Spacecraft (MCS)

ベピコロンボ水星の謎に迫る欧州・日本の共同ミッション

ベピコロンボ水星探査ESAJAXA
2026年8月11日続きを読む →
Reprocessed Mariner 10 data was used to produce this image of Mercury. The smooth band is an area of which no images were taken.

マリナー10号水星と金星への先駆的な旅

マリナー10号NASA水星探査金星フライバイ
2026年8月11日続きを読む →
Example encounter.[2]In the planet's frame of reference, the space probe leaves with the exact same speed at which it had arrived. But when observed in the reference frame of the Solar System (fixed to the Sun), the benefit of this maneuver becomes apparent. Here it can be seen how the probe gains speed by tapping energy from the speed of the planet as it orbits the Sun. (If the trajectory is designed to pass in front of the planet instead of behind it, the gravity assist can be used as a braking maneuver rather than accelerating.) Because the mass of the probe is many orders of magnitude smaller than that of the planet, while the result on the probe is quite significant, the deceleration reaction experienced by the planet, according to Newton's third law, is utterly imperceptible.

Gravity Assist（スイングバイ）の仕組みと宇宙探査への応用

Gravity Assistスイングバイ重力アシスト軌道力学
2026年8月11日続きを読む →
Luna 3 mission on a Soviet stamp

ルナ3号人類で初めて月の裏側を捉えた歴史的探査機

ルナ3号月の裏側ソ連宇宙探査
2026年8月11日続きを読む →