Sunspot drawing of 1961-3-13

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https://doi.org/10.7891/e-manuscripta-92627



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1961-03-13
10:00
Hs 1304.5:1289
https://doi.org/10.7891/e-manuscripta-92627
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
63 13 12 C -6.4 218.5
66 1 3 J 3.1 151.5
2 14 15