Sunspot drawing of 1991-4-11

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https://doi.org/10.7891/e-manuscripta-145765



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1991-04-11
07:00
Hs 1304.6:3125
https://doi.org/10.7891/e-manuscripta-145765
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
153 1 2 A -10 358
154 23 26 D -19 353
155 17 14 B -11 335
156 2 4 J 5 330
158 4 8 D -20 27
162 8 7 B -12 349
165 1 1 A -18 306
166 2 4 A 6 310
170 14 19 D 29 286
171 8 10 D -26 257
172 2 4 A 14 272
173 3 5 B -12 11
175 2 1 B -30 315
177 10 7 B -22 327
180 22 30 D 10 240
181 2 2 A -4 303
182 1 3 J -27 233
17 122 147