Sunspot drawing of 1981-4-9

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https://doi.org/10.7891/e-manuscripta-139103



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1981-04-09
07:30
Hs 1304.6:86
https://doi.org/10.7891/e-manuscripta-139103
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
158 5 3 B -7 4
162 1 3 J 18 345
164 3 4 J 6 330
165 22 13 C 9 315
166 28 22 C 8 304
169 44 38 D 18 291
170 13 14 D 4 333
171 7 4 B 6 319
175 6 5 J 20 280
176 2 3 J 20 249
177 3 2 A -14 339
178 20 12 B 9 297
179 19 36 E 14 234
180 2 1 A 17 319
181 3 2 A 9 285
182 1 3 J 6 217
16 179 165