This brief article examines the historical work on sunspot recording by Rudolph Wolf. Also discusses how sunspot numbers are calculated today and provide graphs of sunspots numbers from past years.

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Concepts

sunspots

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Additional Tags

annual sunspot number graph 1700-1995, cosmic rays, flare-associated events, how sunspot numbers are computed today, solar and planetary phenomena, solar cycles, solar minimum, solar publications, ngdc: sunspot numbers, rudolph wolf

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Classroom Considerations

Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)

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