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Galileo, Christopher Scheiner, and Johann Fabricius observed the first sunspots around 1610
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Heinrich Schwabe of Germany was an astronomer who recorded sun spots for over 17 years and discovered a pattern.
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He published his findings in 1850.
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British astronomer Richard Carington observed the first solar flare.
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George Hale observed two large flares followed by big magnetic storms nearly a day later.
