Sunspot drawing of 1983-10-31

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https://doi.org/10.7891/e-manuscripta-140458



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1983-10-31
09:00
Hs 1304.6:849
https://doi.org/10.7891/e-manuscripta-140458
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
289 9 12 C -19 220
290 5 2 B -17 151
2 14 14