Sunspot drawing of 1983-4-13

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https://doi.org/10.7891/e-manuscripta-140323



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1983-04-13
07:45
Hs 1304.6:676
https://doi.org/10.7891/e-manuscripta-140323
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
86 3 3 B -10 42
89 6 12 C -17 358
91 1 3 J -8 342
93 3 5 C -13 339
94 10 17 D -8 288
95 4 5 C 20 267
6 27 45