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jiusiba1 发表于 2009-4-6 09:19 | 显示全部楼层 |阅读模式 来自: 中国–吉林–长春 电信

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No sunspots? No problem. Even without those planet-sized islands of explosive magnetism, the sun is putting on a nice show:
"We are seeing some extraordinary prominences today," reports Matthias Juergens, who took the picture from his backyard observatory in Gnevsdorf, Germany.
Prominences are clouds of hydrogen held aloft by solar magnetic fields. Because they are not rooted in sunspots, prominences can be numerous even when sunspots are not. Readers, if you have a solar telescope, take a look at this one form of solar activity that has not gone away.

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