Sunspot drawing of 1983-4-16

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https://doi.org/10.7891/e-manuscripta-140395



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1983-04-16
08:00
Hs 1304.6:679
https://doi.org/10.7891/e-manuscripta-140395
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
89 3 5 B -16 356
94 9 15 B -8 288
97 12 19 D 7 230
98 6 6 B -30 311
4 30 45