拉斯坎帕納斯天文臺上空的烏雲
Undulatus Clouds over Las Campanas Observatory
來源:Yuri Beletsky|發表日期:2024-11-19
這些雲是怎麼回事? 雖然看起來這些細長的雲層似乎指向山頂,也許那裡有一個世界著名的天文臺,但這只是其中的一部分。就雲層而言,其形成是地球低層大氣中週期性起伏氣流的偶然疊加。起伏雲是 Asperitas 雲的一種,形成於空氣涼爽到足以導致不透明水滴凝結的山頂。 全景圖的廣角性質造成了雲在山頂匯聚的錯覺。 就陸地而言,山頂上確實有一座世界著名的天文臺:位於智利阿塔卡馬沙漠的卡內基科學天文臺拉斯坎帕納斯天文臺。 可以看到的兩個望遠鏡圓頂是 6 . 5 米的麥哲倫望遠鏡。 這幅巧合的美景是一個驚喜,但卻被一位思維敏捷的攝影師在 9 月下旬用手機拍了下來。 您的天空驚喜:在您生日那天,APOD 報道了哪張照片? ( 1995 年後)
原文:What's happening with these clouds? While it may seem that these long and thin clouds are pointing toward the top of a hill, and that maybe a world-famous observatory is located there, only part of that is true. In terms of clouds, the formation is a chance superposition of impressively periodic undulating air currents in Earth's lower atmosphere. Undulatus, a type of Asperitas cloud, form at the peaks where the air is cool enough to cause the condensation of opaque water droplets. The wide-angle nature of the panorama creates the illusion that the clouds converge over the hill. In terms of land, there really is a world-famous observatory at the top of that peak: the Carnegie Science's Las Campanas Observatory in the Atacama Desert of Chile. The two telescope domes visible are the 6.5-meter Magellan Telescopes. The featured coincidental vista was a surprise but was captured by the phone of a quick-thinking photographer in late September. Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)
※ 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。