山月之影
Shadows of Mountain and Moon

來源:Enzo Massa Micon|發表日期:2024-01-22
月亮和山真的能投下相似的影子嗎?是的,但明暗分界線並不一定要對齊。圖為 2022 年 10 月初在義大利格里沃拉山上空拍攝到的四分之一月亮。 太陽位於風景如畫的右側,照亮了月亮的右側,就像照亮了山的右側一樣。這個月相被稱為 "四分之一",因為從地球上看到的照明部分是整個月球表面的四分之一。 對這一次曝光進行數字後期處理後,兩個巨大的物體都更加突出了。由於地球每天自轉一圈,因此要捕捉到這個四分之一月的終結者與近乎垂直的山脊緊密對準的畫面,就需要仔細把握時間。
原文:Can the Moon and a mountain really cast similar shadows? Yes, but the division between light and dark does not have to be aligned. Pictured, a quarter moon was captured above the mountain Grivola in Italy in early October of 2022. The Sun is to the right of the featured picturesque landscape, illuminating the right side of the Moon in a similar way that it illuminates the right side of the mountain. This lunar phase is called "quarter" because the lit fraction visible from Earth is one quarter of the entire lunar surface. Digital post-processing of this single exposure gave both gigantic objects more prominence. Capturing the terminator of this quarter moon in close alignment with nearly vertical mountain ridge required careful timing because the Earth rotates once a day.
※ 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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