Sunspot drawing of 1961-4-3

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https://doi.org/10.7891/e-manuscripta-92540



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1961-04-03
08:00
Hs 1304.5:1310
https://doi.org/10.7891/e-manuscripta-92540
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
84 15 11 D -13.4 350.1
86 1 4 J -18.8 337.5
89 23 13 E -16.8 313.1
92 8 4 B -8.0 319.4
93 1 3 J -4.0 238.3
5 48 35