冥王星的風景
A Plutonian Landscape

發表日期:2025-05-15
在一個遙遠的小世界上,這幅由雄偉的山脈和冰雪平原組成的朦朧景觀一直延伸到地平線。這是新地平線號在 2015 年 7 月 14 日最接近冥王星 15 分鐘後,在約 1 . 8 萬公里的範圍內回望冥王星時捕捉到的。這幅壯觀的低角度近黃昏景象沿左前方的崎嶇山脈(正式名稱為諾爾蓋山)和地平線上的希拉里山(Hillary Montes)展開,右邊是光滑的斯普特尼克平原(Sputnik Planum)。冥王星脆弱的大氣層也在逆光下顯露出來。寒冷的地形有可能包括氮和一氧化碳的冰層,水冰山高達 3500 米( 11000 英尺)。這與地球上雄偉的山脈高度相當。冥王星的地形寬度為 380 公里( 230 英里)。
原文:This shadowy landscape of majestic mountains and icy plains stretches toward the horizon on a small, distant world. It was captured from a range of about 18,000 kilometers when New Horizons looked back toward Pluto, 15 minutes after the spacecraft's closest approach on July 14, 2015. The dramatic, low-angle, near-twilight scene follows rugged mountains formally known as Norgay Montes from foreground left, and Hillary Montes along the horizon, giving way to smooth Sputnik Planum at right. Layers of Pluto's tenuous atmosphere are also revealed in the backlit view. With a strangely familiar appearance, the frigid terrain likely includes ices of nitrogen and carbon monoxide with water-ice mountains rising up to 3,500 meters (11,000 feet). That's comparable in height to the majestic mountains of planet Earth. The Plutonian landscape is 380 kilometers (230 miles) across.
※ 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。