Sunspot drawing of 1981-4-8

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https://doi.org/10.7891/e-manuscripta-139091



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1981-04-08
06:45
Hs 1304.6:85
https://doi.org/10.7891/e-manuscripta-139091
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
158A 10 10 D -7 5
160 1 1 A 13 19
162 6 5 J 18 345
164 3 6 J 6 331
165 1 3 J 8 316
166 31 19 C 7 306
169 54 43 E 18 291
170 29 17 C 4 335
171 14 7 B 6 320
172 6 3 B -8 273
173 2 1 A 12 330
175 4 4 J 21 281
176 1 3 J 20 248
177 10 6 B -15 338
178 21 12 C 9 298
179 11 28 D 15 235
16 204 168