Sunspot drawing of 1981-4-10

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https://doi.org/10.7891/e-manuscripta-139128



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1981-04-10
07:45
Hs 1304.6:87
https://doi.org/10.7891/e-manuscripta-139128
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 1 3 J 18 345
164 1 3 J 6 330
165 26 23 D 9 316
166 40 26 C 8 306
169 32 28 D 18 291
170 25 20 D 5 337
171 7 5 B 6 322
172 4 2 A -7 279
175 9 7 B 19 282
176 1 3 J 20 249
178 18 12 C 9 298
179 27 33 E 14 234
182 7 12 D 8 218
183 1 3 J -5 220
184 1 2 A -8 216
15 200 182