Sunspot drawing of 1961-4-13

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https://doi.org/10.7891/e-manuscripta-92486



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1961-04-13
10:00
Hs 1304.5:1321
https://doi.org/10.7891/e-manuscripta-92486
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
93 1 3 J -5.5 240.0
98 4 6 C 14.3 139.5
99 2 5 J 3.7 132.0
100 4 5 B -28.4 156.9
101 1 1 A 0.7 170.7
5 12 20