Copyright:Lorenzo Busilacchi
中文翻譯:
在意大利撒丁島的西海岸，有一個美麗的海邊日落，它帶來了一種夢幻般的體驗。這幅壯觀的畫面是用相機和長焦鏡頭拍攝的，畫面中展現了海洋和天空的景色。當太陽逐漸接近地平線時，它的外觀看起來像是在融化，但這其實是因為光線在空氣中折射，造成了扭曲的影像，就像海市蜃樓一樣。這種折射現象是由於空氣中的不同溫度和密度層造成的。當我們眺望即將下沉（或剛升起）的太陽，還有一個有趣的現象叫做綠閃光，它是一瞬間的光芒，非常神奇。
原文:
This seaside sunset offered a surreal experience, captured in a sea and skyscape from the west coast of Sardinia, Italy, planet Earth. The Daliesque scene is a composition of sequential exposures made with a camera and long telephoto lens. The Sun is not melting, though. Its shifting and fluid appearance as it nears the horizon is caused as refraction along the line of sight changes and creates distorted images or mirages of the reddened solar disk. The changes in atmospheric refraction correspond to atmospheric layers with sharply different temperatures and densities. Another famous but fleeting effect of atmospheric refraction produced by a long sight-line to the setting (or rising) Sun is often called the green flash.
來源:NASA每日圖片
