perigee
US /ˈpɛrədʒi/
・UK /ˈperɪdʒi:/
A1 初級
n.名詞近地點
影片字幕
超級月亮為何又大又圓又亮？ (ScienceCasts: A Summer of Super Moons)
03:34
- The scientific term for the phenomenon is 'perigee moon.'
對於此現象的科學術語為"近地月"。
- The Moon follows an elliptical path around Earth with one side ('perigee') about 50,000 km closer than the other ('apogee').
而月亮以橢圓的路徑繞著地球轉（近地點）的那側離另一側（遠地點）約50,000公里。
SpaceX 將如何登陸火星 (How SpaceX Will Land On Mars)
16:45
- In this case, we might be better served by inserting the ship into an elliptical orbit, so instead of flying in a circle, we're moving in an oval pattern with a low spot, or perigee, close to the planet and a high spot, or apogee, deeper out into space.
在這種情況下，我們最好把飛船放入一個橢圓軌道，這樣我們就不會在一個圓圈內飛行，而是以一個橢圓形的模式移動，低點或近地點靠近行星，高點或遠地點深入太空。
- We can lower the perigee of our orbit down to the point where the ship actually dips into the upper atmosphere of the planet.
我們可以將軌道的近地點降低到飛船實際進入行星上層大氣的位置。
