Sunspot drawing of 1961-4-2

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https://doi.org/10.7891/e-manuscripta-92610



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1961-04-02
13:15
Hs 1304.5:1309
https://doi.org/10.7891/e-manuscripta-92610
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
79 2 A 7.3 50.8
84 18 E -14.4 350.3
86 7 C -19.1 335.9
89 15 E -16.9 312.7
92 3 B -8.5 319.5
5 45