波兰上空的红色极光

Red Aurora over Poland
Image Credit & Copyright: Mariusz Durlej

Explanation: Northern lights don’t usually reach this far south. Magnetic chaos in the Sun’s huge Active Region 3664, however, produced a surface explosion that sent a burst of electrons, protons, and more massive, charged nuclei into the Solar System. A few days later, that coronal mass ejection (CME) impacted the Earth and triggered auroras that are being reported unusually far from our planet’s north and south poles. The free sky show might not be over — the sunspot rich AR3664 has ejected even more CMEs that might also impact the Earth tonight or tomorrow. That active region is now near the Sun’s edge, though, and will soon be rotating away from the Earth. Pictured, a red and rayed aurora was captured in a single 6-second exposure from Racibórz, Poland early last night. The photographer’s friend, seeing an aurora for the first time, is visible in the distance also taking images of the beautifully colorful nighttime sky.

Gallery: Global Aurora from Solar Active Region 6443

Tomorrow’s picture: setting sunspots

波兰上空的红色极光
影像提供与版权: Mariusz Durlej

说明: 北极光通常不会伸展到这么南边。然而，太阳庞大的活跃区3664里的混乱磁场，导致表面发生了爆发，并把大团的电子、质子和更大质量的带电原子核喷入太阳系。几天之后，这例日冕物质抛射（CME）撞到了地球并触发极光，而且根据报导，有些极光不寻常的出现在远离地球北极和南极的地区。这场免费的天空表演可能还没结束，太阳黑子群集的AR3664，后来喷出了更多的日冕物质抛射，有些可能会在今晚或明天冲撞地球。不过，这个活跃区目前已经移到日盘的边缘，很快就会旋到远离地球的反侧。这幅昨晚摄于波兰拉契布日镇的6秒单曝光影像，就记录了一例带有辐条状结构的泛红极光。影像里，摄影者首次观看极光的朋友，也在远处拍摄这片美丽多彩的夜空。

图片集: 来自太阳活跃区6443的全球极光

明日的图片: setting sunspots

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