Sunspot drawing of 1961-12-7

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https://doi.org/10.7891/e-manuscripta-92674



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1961-12-07
10:30
Hs 1304.5:1527
https://doi.org/10.7891/e-manuscripta-92674
Observer : Araldo Pittini
Seeing (SIDC) : 1
Group Not Weighted Weighted Type Latitude Carrington Longit.
331 8 16 C 14.9 314.5
333 2 7 D 7.5 323.5
2 10 23