Sunspot drawing of 1981-4-11

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https://doi.org/10.7891/e-manuscripta-139088



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1981-04-11
09:00
Hs 1304.6:88
https://doi.org/10.7891/e-manuscripta-139088
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 1 3 J 19 347
164 1 3 J 6 331
165 20 20 D 10 316
166 29 27 D 8 307
169 37 32 D 18 291
170 10 17 D 5 338
175 2 4 J 20 280
176 3 3 A 20 249
178 15 14 D 9 300
179 37 38 E 14 233
182 10 12 D 8 218
183 3 4 B -5 220
184 2 1 A -8 216
185 4 3 B 19 329
186 5 4 B 16 305
187 2 2 B -9 252
16 181 187