太阳X耀斑作为著名的活跃区域返回
(原标题: Solar X Flare as Famous Active Region Returns)
2024-05-28
浏览次数: 14
它的背上。本月早些时候，太阳上著名的活跃区域在地球周围产生了可见的极光，它在绕太阳远端的旋转中幸存下来，并返回了地球。昨天，当它开始重新出现在面向地球的一面时，以前被标记为AR 3664的区域又抛出了另一个主要的太阳耀斑，也是在最高能量的x级范围内。这段特色视频显示了左下角正在出现的活跃区域，这是昨天由美国宇航局的地球轨道太阳动力学观测站在紫外线下拍摄的。这段视频是整个太阳在24小时内旋转的延时拍摄。仔细观察左下方区域，在大约2秒的标记处，可以看到强大的耀斑爆发。来自耀斑和相关CME的高能粒子预计不会直接撞击地球并引发令人印象深刻的极光，但科学家将在未来两周内密切关注这个异常活跃的区域，因为它面向地球，看看会发生什么。
查看原文解释
It's back. The famous active region on the Sun that created auroras visible around the Earth earlier this month has survived its rotation around the far side of the Sun -- and returned. Yesterday, as it was beginning to reappear on the Earth-facing side, the region formerly labeled AR 3664 threw another major solar flare, again in the highest-energy X-class range. The featured video shows the emerging active region on the lower left, as it was captured by NASA's Earth-orbiting Solar Dynamics Observatory yesterday in ultraviolet light. The video is a time-lapse of the entire Sun rotating over 24 hours. Watch the lower-left region carefully at about the 2-second mark to see the powerful flare burst out. The energetic particles from that flare and associated CME are not expected to directly impact the Earth and trigger impressive auroras, but scientists will keep a close watch on this unusually active region over the next two weeks, as it faces the Earth, to see what develops.