极光圣诞树
(原标题: Christmas Tree Aurora)
2024-12-23
浏览次数: 10
那是12月，天空像圣诞树一样亮了起来。闪烁的、鲜艳的绿色、蓝色和紫色的极光颜色形成了树状的幻影，这是由大气中的高氧和氮对入射电子的爆发作出反应造成的。碰撞使原子和分子的轨道电子跃迁到激发态，并在返回正常状态时发出可见光。这张特色图片是2023年最后一个月在冰岛Djúpivogur拍摄的。我们的太阳目前正处于其11年周期中最活跃的阶段，大量的活跃区域和太阳黑子可能会持续到明年。当然，在这一整年里，太阳一直处于太阳活动极大期，它的爆发有时会导致壮观的地球极光。图像处理器：以NASA的天文摄影挑战赛为例
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It was December and the sky lit up like a Christmas tree. Shimmering, the vivid green, blue, and purple auroral colors that formed the tree-like apparition were caused by high atmospheric oxygen and nitrogen reacting to a burst of incoming electrons. Collisions caused the orbital electrons of atoms and molecules to jump into excited energy states and emit visible light when returning to their normal state. The featured image was captured in Djúpivogur, Iceland during the last month of 2023. Our Sun is currently in its most energetic phase of its 11-year cycle, with its high number of active regions and sunspots likely to last into next year. Of course, the Sun has been near solar maximum during this entire year, with its outbursts sometimes resulting in spectacular Earthly auroras. Image Processors: Take NASA's Astrophoto Challenge
© Jingyi Zhang