Solar rotation during the Maunder Minimu
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J. A. Eddy; P. A. Gilman; D. E. Trotter
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Article
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1976
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Springer
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English
⚖ 526 KB
We have measured solar surface rotation from sunspot drawings made in A.D. 1642-1644 and find probable differences from present-day rates. The 17th century sunspots rotated faster near the equator by 3 or 4%, and the differential rotation between 0 and :t:20 ~ latitude was enhanced by about a factor