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Zonnevlekkengroepen

Hier behandelen we interessante zonnevlekgroepen. Bij hoge zonneactiviteit zullen hier regelmatig updates verschijnen.

159 topics in this forum

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  1. Zonnevlek 933

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  2. Nieuwe X3.4-flare 13/12

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  3. Zonneactiviteit 1598

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  4. Zonnevlekkengebied 1719

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