Sunspot drawing of 1981-4-15

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https://doi.org/10.7891/e-manuscripta-139081



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1981-04-15
07:30
Hs 1304.6:92
https://doi.org/10.7891/e-manuscripta-139081
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
169 20 20 C 19 289
178 2 2 A 9 300
179 48 42 E 13 233
182 34 26 D 9 220
183 5 8 C -6 220
188 19 23 D -9 193
189 5 6 B -4 234
190 11 13 D 22 175
191 8 12 C 16 173
192 2 1 A -31 218
193 12 16 D 13 152
194 2 2 A 6 271
195 3 2 A 12 207
196 8 12 D 24 149
197 4 5 C -11 147
15 183 190