浮游生物滿月
A Full Plankton Moon
來源：Petr Horálek /
Institute of Physics in Opava｜發表日期：2024-03-11
什麼會在夜裡發光？這個夜晚既有常見的光芒，也有不尋常的光芒。最常見的光芒可能是來自月球，一個可能很熟悉的天體。滿月幾乎是垂直下降的，這是因為觀測者位於地球赤道附近。當月亮落下時，地球大氣層中的空氣和氣溶膠會優先散射出藍色的光，使這顆反射太陽光的衛星在地平線附近呈現紅色。 也許最不尋常的光芒來自於生物發光浮游生物，它們可能是人們不太熟悉的物體。據認為，這些微小生物發出藍光，主要是為了讓捕食者感到驚訝和威懾。在這種情況下，發光的主要原因是含有浮游生物的海浪衝向海灘。這張照片是一年多前在馬爾地夫索尼娃富什島拍攝的。 您的天空驚喜：你的生日那天，APOD 報道了哪張照片？ （ 1995 年後）
原文：What glows in the night? This night featured a combination of usual and unusual glows. Perhaps the most usual glow was from the Moon, a potentially familiar object. The full Moon's nearly vertical descent results from the observer being near Earth's equator. As the Moon sets, air and aerosols in Earth's atmosphere preferentially scatter out blue light, making the Sun-reflecting satellite appear reddish when near the horizon. Perhaps the most unusual glow was from the bioluminescent plankton, likely less familiar objects. These microscopic creatures glow blue, it is thought, primarily to surprise and deter predators. In this case, the glow was caused primarily by plankton-containing waves crashing onto the beach. The image was taken on Soneva Fushi Island, Maldives just over one year ago. 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。