sub-categories:
auroras (6) - aurora borealis, northern lights, theory, images, observations, locations...
sundials (4) - learn how to make a solar timing device...
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weather and storms (7) - space weather is a real phenomenon...
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links in this category:
Sunspots and the Solar Cycle
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Description:
Get detailed counts on the number of sunspots seen in current observations.
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Record Last Updated:
13-Jun-2000
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1470
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