Sunspot drawing of 1961-4-16

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https://doi.org/10.7891/e-manuscripta-92618



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1961-04-16
08:30
Hs 1304.5:1323
https://doi.org/10.7891/e-manuscripta-92618
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
98 25 E 13.5 140.5
99 12 C 3.1 130.0
100 4 A -28.6 155.4
102 5 B -10.4 106.3
103 3 J 7.9 64.9
104 4 C -10.7 66.5
6 53