Sunspot drawing of 1981-4-27

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https://doi.org/10.7891/e-manuscripta-139028



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1981-04-27
07:45
Hs 1304.6:99
https://doi.org/10.7891/e-manuscripta-139028
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
196 2 3 J 23 141
197 1 3 J -9 140
209 9 11 C 15 30
210A 8 9 J 2 19
211 18 14 B 3 25
212 1 2 A 17 94
213 1 3 J 20 342
214 1 2 A 4 343
8 41 47