Sunspot drawing of 1983-1-31

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https://doi.org/10.7891/e-manuscripta-140286



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1983-01-31
09:45
Hs 1304.6:621
https://doi.org/10.7891/e-manuscripta-140286
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
30 8 14 C -9 243
31 1 3 J 4 215
33 24 30 D 4 238
34 14 14 B -17 192
35 10 20 D -13 178
36 15 30 D -18 169
37 1 2 A -16 120
7 73 113