北天的极光

北天的极光

North Celestial Aurora
Image Credit & Copyright: Chirag Upreti

Explanation: Graceful star trail arcs reflect planet Earth’s daily rotation in this colorful night skyscape. To create the timelapse composite, on May 12 consecutive exposures were recorded with a camera fixed to a tripod on the shores of the Ashokan Reservoir, in the Catskills region of New York, USA. North star Polaris is near the center of the star trail arcs. The broad trail of a waxing crescent Moon is on the left, casting a strong reflection across the reservoir waters. With intense solar activity driving recent geomagnetic storms, the colorful aurora borealis or northern lights, rare to the region, shine under Polaris and the north celestial pole.

AuroraSaurus: Report your aurora observations

Tomorrow’s picture: pixels in space

北天的极光
影像提供与版权: Chirag Upreti

说明: 在这幅色彩缤纷的夜空影像里，优美的星像迹线反映了地球每天的自转运动。而为了制作这张缩时组合影像，一部位于美国纽约州卡茨基尔山区的阿肖坎水库岸边、以三脚架固定的相机，在5月12日连续拍下多张照片。影像里，指北的北极星位于星像迹线弧的中心附近。左侧则可见到上蛾眉月的宽阔迹线，以及它于水库水面投下的炫目倒影。近日来由剧烈太阳活动所驱动的地磁风暴（磁暴），在此地区触发了罕见、位于北极星和北天极下方的北极光。

Aurora Saurus: 报告你的极光观测

明日的图片: pixels in space