rjxie 发表于 2004-6-12 09:22

[酷图] 日饵镜拍摄到金星凌日和色球。

Venus and the Chromosphere
Credit & Copyright: Stefan Seip
Explanation: Enjoying the 2004 Transit of Venus from Stuttgart, Germany, astronomer Stefan Seip recorded this fascinating, detailed image of the Sun. Revealing a network of cells and dark filaments against a bright solar disk with spicules and prominences along the Sun's limb, his telescopic picture was taken through an H-alpha filter. The filter narrowly transmits only the red light from hydrogen atoms and emphasizes the solar chromosphere -- the region of the Sun's atmosphere immediately above its photosphere or normally visible surface. Here, the dark disk of Venus seems to be imitating a giant sunspot that looks perhaps a little too round. But in H-alpha pictures like this one, sunspot regions are usually dominated by bright splotches (called plages) on the solar chromosphere.

dzway 发表于 2004-6-12 09:27

顶级效果。请楼主翻译全文，我看不懂。

ufo 发表于 2004-6-12 10:44

日珥镜就是爽！！！

天乐 发表于 2004-6-12 10:44

威极了！收藏。

lc 发表于 2004-6-12 10:59

棒极了!!

ssry 发表于 2004-6-12 14:13

好！收了！！日珥、耀斑也很清楚！！！
太阳现在很安静！！！！

楚轩文斌 发表于 2004-6-12 14:46

恩不错很帅

danming 发表于 2004-6-12 15:14

cofer 发表于 2011-3-1 20:57

如果有一台色球望远镜就好了
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