Science Source Feb 2010
EN_90286391_0221
![Science Source Feb 2010](img/medium/arch1/dvd0114/18/EN_90286391_0221.jpg)
Enlarged view of an exceptionally large sunspot group, as seen by Hale Observatory, May 17, 1951.
2010-02-13
EAST NEWS
Science Source
Science Source
4h8897
0,84MB
28cm x 19cm by 300dpi
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