Sunspot drawing of 1961-4-7

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https://doi.org/10.7891/e-manuscripta-92569



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1961-04-07
07:00
Hs 1304.5:1314
https://doi.org/10.7891/e-manuscripta-92569
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
86 3 J -19.3 337.1
89 13 C -17.0 314.4
92 6 B -8.4 321.4
93 4 J -4.4 239.9
94 36 E 13.1 277.8
5 62