Sunspot drawing of 1961-3-31

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https://doi.org/10.7891/e-manuscripta-92519



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1961-03-31
07:00
Hs 1304.5:1307
https://doi.org/10.7891/e-manuscripta-92519
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
76 5 J 7.9 65.7
79 14 D 7.2 51.6
84 34 D -13.5 350.5
86 11 E -19.1 336.7
87 2 A -9.7 64.1
89 16 E -16.9 313.7
92 1 A -8.7 314.8
7 83