Sunspot drawing of 1981-5-21

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https://doi.org/10.7891/e-manuscripta-139156



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1981-05-21
07:30
Hs 1304.6:120
https://doi.org/10.7891/e-manuscripta-139156
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
240 13 12 G 14 159
241 6 10 C 15 145
245 18 22 H -25 117
247 5 9 J -27 163
248 5 4 A 9 159
249 1 3 J -8 36
250 1 2 A -8 147
251 5 3 B -31 107
252 3 2 B 12 97
253 1 2 A -12 44
254 2 6 D 3 20
11 60 75