Sunspot drawing of 1981-4-16

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https://doi.org/10.7891/e-manuscripta-139205



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1981-04-16
07:15
Hs 1304.6:93
https://doi.org/10.7891/e-manuscripta-139205
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
169 2 6 G 20 287
179 38 35 D 13 232
182 26 24 D 8 219
183 1 3 J -5 223
188 22 29 D -8 192
189 2 2 A -6 236
190 14 15 C 22 175
191 13 13 C 17 173
192 1 1 A -30 220
193 23 25 D 13 152
194 1 1 A 6 273
195 11 10 C 13 207
196 6 13 G 24 148
197 3 4 J -11 146
198 1 1 A 23 205
15 164 182