克尔科诺谢山脉上空的极光

克尔科诺谢山脉上空的极光

Aurora over Karkonosze Mountains
Image Credit & Copyright: Daniel Koszela

Explanation: It was the first time ever. At least, the first time this photographer had ever seen aurora from his home mountains. And what a spectacular aurora it was. The Karkonosze Mountains in Poland are usually too far south to see any auroras. But on the amazing night of May 10 – 11, purple and green colors lit up much of the night sky, a surprising spectacle that also appeared over many mid-latitude locations around the Earth. The featured image is a composite of six vertical exposures taken during the auroral peak. The futuristic buildings on the right are part of a meteorological observatory located on the highest peak of the Karkonosze Mountains. The purple color is primarily due to Sun-triggered, high-energy electrons impacting nitrogen molecules in Earth’s atmosphere. Our Sun is reaching its maximum surface activity over the next two years, and although many more auroras are predicted, most will occur over regions closer to the Earth’s poles.

Tomorrow’s picture: star swirl

克尔科诺谢山脉上空的极光
影像提供与版权: Daniel Koszela

说明: 这是有史以来的第一次，或至少是这位摄影者第一次在家乡的山区看到极光。而且这场极光真精采啊。波兰的克尔科诺谢山脉离极区很远，通常无法看到极光。但是在令人惊叹的5月10/11日那晚，紫色和绿色的极光照亮了大片的夜空，而这种意外出现的精采景观，也广见于地球许多的中纬度地区。这幅主题影像，是由极光极盛时所拍摄的6张竖直照片组合而成。影像右侧的未来感建筑，则是座落在克尔科诺谢山脉最高峰的气象站之部分建物。此外，泛紫的极光主要是由来自太阳的高能电子，撞击地球大气的氮分子时所产生的。太阳在接下来的2年之中，将处在表面活动的极大期，尽管预期会触发更多的地球极光，但极光出没的区域大多只限于地球的南北两极附近。 （Karkonosze Mountains 克尔科诺谢山脉）

明日的图片: star swirl