Sunspot drawing of 1961-4-1

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https://doi.org/10.7891/e-manuscripta-92633



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1961-04-01
07:15
Hs 1304.5:1308
https://doi.org/10.7891/e-manuscripta-92633
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
76 4 H 7.7 67.7
79 9 C 7.3 52.8
84 27 E -14.1 352.1
86 10 C -18.8 336.8
87 4 A -10.1 64.5
89 20 E -16.9 314.1
92 2 B -8.5 316.6
7 76