Copyright:
Jeff Dai
原文:
What are those colorful rings around the Sun? A corona visible only to Earth observers in the right place at the right time. Rings like this will sometimes appear when the Sun or Moon is seen through thin clouds. The effect is created by the quantum mechanical diffraction of light around individual, similarly-sized water droplets in an intervening but mostly-transparent cloud. Since light of different colors has different wavelengths, each color diffracts differently. Solar Coronae are one of the few quantum color effects that can be easily seen with the unaided eye. This type of solar corona is a visual effect due to water in Earth’s atmosphere and is altogether different from the solar corona that exists continually around the Sun — and stands out during a total solar eclipse. In the foreground is the famous Himalayan mountain peak Ama Dablam (Mother’s Necklace), Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
當太陽或月亮穿過薄雲時，有時會出現環繞在周圍的彩色光環。這種效果是由於量子機械的光繞射現象，在較透明的雲層中，水滴相同大小的微小水珠使光線發生繞射。由於不同顏色的光擁有不同的波長，每種顏色的繞射程度不同。這種太陽光圈（Solar Corona）是少數可以用肉眼輕易看到的量子色彩效應之一。這種類型的太陽光圈是由地球大氣中的水造成的視覺效果，與持續存在於太陽周圍的太陽光圈（Solar Corona）完全不同，後者在總日蝕期間尤為明顯。在前景中是著名的喜馬拉雅山峰——阿瑪達布蘭（Ama Dablam，母親的項鍊）。
#彩虹光環 #太陽光圈 #光繞射 #阿瑪達布蘭 #自然之美 #量子色彩 #太陽 #月亮 #天文學 #喜馬拉雅山 #美麗的瞬間 #悠閒時光
來源:NASA每日圖片
