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Zonneactiviteit

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Sunspot regions, coronal holes, filaments? In this forum we discuss everything related to the activity on our nearest star.

257 topics in this forum

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  1. Zonnevlekkengebied 1654 1 2 3

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  2. Zonnvlekkengebied 1640

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  3. De zon knipoogt even naar ons

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  4. Oud zonnevlekkengebied 1620 keert terug 1 2

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  5. Sunspotless day

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    • 1,680 views
  6. Zonnevlekkengebied 1620

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