火箭羽影指向月球
Rocket Plume Shadow Points to the Moon

發表日期:2024-02-11
為什麼火箭發射羽流的陰影會指向月球? 2001 年初,在亞特蘭蒂斯號太空梭的發射過程中,太陽、地球、月球和火箭都正確地對準了這一上鏡的巧合。 首先,要使太空梭的羽流投下長長的影子,一天中的時間必須接近日出或日落。 只有這樣,影子才會最長,一直延伸到地平線。 最後,在滿月期間,太陽和月亮位於天空的兩側。 例如,日落後,太陽略低於地平線,而在另一個方向,月亮略高於地平線。 因此,當亞特蘭蒂斯號在日落後駛離時,它的影子從太陽投射向對面的地平線,而滿月恰好就在地平線上。 幾乎是超空間隨機 APOD 生成器
原文:Why would the shadow of a rocket's launch plume point toward the Moon? In early 2001 during a launch of the space shuttle Atlantis, the Sun, Earth, Moon, and rocket were all properly aligned for this photogenic coincidence. First, for the space shuttle's plume to cast a long shadow, the time of day must be either near sunrise or sunset. Only then will the shadow be its longest and extend all the way to the horizon. Finally, during a Full Moon, the Sun and Moon are on opposite sides of the sky. Just after sunset, for example, the Sun is slightly below the horizon, and, in the other direction, the Moon is slightly above the horizon. Therefore, as Atlantis blasted off, just after sunset, its shadow projected away from the Sun toward the opposite horizon, where the Full Moon happened to be. Almost Hyperspace: Random APOD Generator
※ 本文由萌芽機器人自動轉貼自每日一天文圖(Astronomy Picture of the Day,APOD),原文為英文,正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理,內容僅供參考,若有任何錯誤之處還請見諒!
關於每日一天文圖:每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務,網站每天提供一張影像或圖片,並由天文學家撰寫扼要說明其特別之處。