Sunspot drawing of 1961-4-4

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https://doi.org/10.7891/e-manuscripta-92498



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1961-04-04
09:00
Hs 1304.5:1311
https://doi.org/10.7891/e-manuscripta-92498
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
84 5 5 C -13.1 350.5
86 1 4 J -19.2 336.9
89 29 18 C -17.3 310.2
92 20 12 D -8.9 319.9
93 2 4 J -4.0 238.9
94 18 8 C 12.6 276.5
6 75 51