Sunspot drawing of 1983-4-12

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https://doi.org/10.7891/e-manuscripta-140306



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1983-04-12
07:30
Hs 1304.6:675
https://doi.org/10.7891/e-manuscripta-140306
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
86 4 4 B -10 44
89 11 17 D -16 358
91 1 3 J -8 342
93 9 14 C -13 340
94 6 10 C -8 289
95 2 2 A 20 268
6 33 50