挪威上空的极光蜂鸟
(原标题: Auroral Hummingbird over Norway)
2025-02-10
浏览次数: 23
这是有史以来最大的蜂鸟吗？虽然它看起来像是一种流行的飞舞的蜜桃，但照片上的极光实际上是一幅细节精美、色彩缤纷的极光，光线让人想起羽毛。这种极光是如此的明亮，以至于在日落之后天空呈现深蓝色的蓝时，用肉眼就能看到。然而，通过能够捕捉到微弱光芒的灵敏相机，极光看起来只是像一只蜂鸟。由于红色通常比绿色出现在地球大气层中更高的位置，所以这个极光的真正3D形状可能看起来不太熟悉。当太阳爆炸导致高能粒子流入地球大气层并激发氮和氧的原子和分子时，就会产生极光。这张特色图片是大约两周前在挪威林格塞特上空拍摄的。
查看原文解释
Is this the largest hummingbird ever? Although it may look like a popular fluttering nectarivore, what is pictured is actually a beautifully detailed and colorful aurora, complete with rays reminiscent of feathers. This aurora was so bright that it was visible to the unaided eye during blue hour -- just after sunset when the sky appears a darkening blue. However, the aurora only looked like a hummingbird through a sensitive camera able to pick up faint glows. As reds typically occurring higher in the Earth's atmosphere than the greens, the real 3D shape of this aurora would likely appear unfamiliar. Auroras are created when an explosion on the Sun causes high energy particles to flow into the Earth's atmosphere and excite atoms and molecules of nitrogen and oxygen. The featured image was captured about two weeks ago above Lyngseidt, Norway.
© Mickael Coulon