2026年2月8日
Active Sunspot Region 4366 Crosses the Sun
Image Credit & Copyright: Daniel Korona
Explanation: An unusually active sunspot region is now crossing the Sun. The region, labelled AR 4366, is much larger than the Earth and has produced several powerful solar flares over the past ten days. In the featured image, the region is marked by large and dark sunspots toward the upper right of the Sun’s disk. The image captured the Sun over a hill in Zacatecas, Mexico, 5 days ago. AR 4366 has become a candidate for the most active solar region in this entire 11-year solar cycle. Active solar regions are frequently associated with increased auroral activity on the Earth. Now reaching the edge, AR 4366 will begin facing away from the Earth during the coming week. It is not known, though, if the active region will survive long enough to reappear in about two weeks’ time, as the Sun rotates.
Tomorrow’s picture: groovy Miranda
活跃太阳黑子区4366横越太阳盘面
影像提供与版权: Daniel Korona
说明: 一个异常活跃的太阳黑子区正穿越太阳表面。编号为AR 4366的区域比地球大得多，且在过去十天已经释放出多次强烈的太阳闪焰。在这张影像中，该区域以位在太阳圆面右上方的一群又大又暗的太阳黑子标示出来。这张图片拍摄于5天前，地点是墨西哥 萨卡特卡斯的一座小山，照片中太阳正位于山丘之上。AR 4366已成为整个约11年尺度的第25太阳活动周期中，最活跃的太阳区域候选者之一。活跃的太阳区域往往与高纬度的极光活动增强有关。AR 4366目前已到达边缘，并将于下周开始背对地球。然而，由于太阳自转，该活跃区域能否持续足够长的时间，并在大约两周后再次出现，目前尚不得而知。
明日的图片: groovy Miranda
