
中文翻譯:
你知道嗎?雖然太陽看起來是白色的,但實際上它發出好多不同顏色的光。當我們把太陽光通過像棱鏡的東西時,就能看到各種各樣的顏色,就像彩虹一樣!這個光譜是在麥克馬斯-皮爾斯太陽觀測站製作的。你能想像嗎?在所有的顏色中,太陽最明亮的顏色是黃綠色!這真有趣!
不過,為什麼太陽的光會缺少一些顏色呢?這是因為太陽上面的氣體在吸收光線,這樣就會有一些顏色消失了。不同的氣體會吸收不同的顏色,就像當你玩顏料時,每種顏料呈現的顏色都不同一樣。科學家們透過這種方式來了解太陽裡面有什麼氣體。比如說,氦氣(Helium)就是在1868年透過太陽的光譜首次被發現的,之後才在地球上找到了!現在,大多數的光譜吸收線已經被識別出來了,但還是有一些仍然未知。
總之,太陽的光不僅讓我們的世界變得明亮,還隱藏著許多有趣的秘密!
原文:
It is still not known why the Sun’s light is missing some colors. Here are all the visible colors of the Sun, produced by passing the Sun’s light through a prism-like device. The spectrum was created at the McMath-Pierce Solar Observatory and shows, first off, that although our white-appearing Sun emits light of nearly every color, it appears brightest in yellow-green light. The dark patches in the featured spectrum arise from gas at or above the Sun’s surface absorbing sunlight emitted below. Since different types of gas absorb different colors of light, it is possible to determine what gasses compose the Sun. Helium, for example, was first discovered in 1868 on a solar spectrum and only later found here on Earth. Today, the majority of spectral absorption lines have been identified – but not all. Free APOD Lecture in Phoenix: Wednesday, December 10 at 7 pm
來源:NASA每日圖片


