太阳和它消失的颜色
(原标题: The Sun and Its Missing Colors)
2023-06-11
浏览次数: 12
这是太阳的所有可见颜色，是由太阳的光通过一个类似棱镜的装置产生的。这张光谱是由麦克马斯-皮尔斯太阳天文台绘制的，它首先表明，尽管我们的白色太阳几乎发出所有颜色的光，但它在黄绿色的光中显得最亮。特征光谱中的暗斑是由太阳表面或上面的气体吸收太阳下面发射的阳光而产生的。由于不同类型的气体吸收不同颜色的光，所以有可能确定太阳是由什么气体组成的。例如，氦最早是在1868年在太阳光谱中发现的，后来才在地球上发现。今天，大多数的光谱吸收线已经被识别，但不是全部。
查看原文解释
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.