海王星之夜
Neptune at Night
來源:Voyager|發表日期:2024-11-09
冰巨行星海王星在地球的夜空中很微弱。它距離太陽的距離是我們地球的 30 倍,需要用望遠鏡才能瞥見這個昏暗而遙遠的世界。不過,地球附近的望遠鏡是無法看到海王星夜景的。從太陽系內部望出去,它們只能看到海王星的白天。 事實上,這幅海王星纖細新月與大衛星海衛一新月相鄰的夜景圖是航海家 2 號拍攝的。航海家 2 號宇宙飛船於 1977 年從地球上發射升空, 1989 年近距離飛越了太陽系最外層的行星,在這個機器人宇宙飛船繼續向星際空間航行的過程中回望了海王星。
原文:Ice giant Neptune is faint in Earth's night sky. Some 30 times farther from the Sun than our fair planet, telescopes are needed to catch a glimpse of the dim and distant world. This dramatic view of Neptune's night just isn't possible for telescopes in the vicinity of planet Earth though. Peering out from the inner Solar System they can only bring Neptune's day side into view. In fact this night side image with Neptune's slender crescent next to the crescent of its large moon Triton was captured by Voyager 2. Launched from planet Earth in 1977 the Voyager 2 spacecraft made a close fly by of the Solar System's outermost planet in 1989, looking back on Neptune as the robotic spacecraft continued its voyage to interstellar space.
※ 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!
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