Sunspot drawing of 1990-4-2

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https://doi.org/10.7891/e-manuscripta-145356



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1990-04-02
08:45
Hs 1304.6:2808
https://doi.org/10.7891/e-manuscripta-145356
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
173 2 4 J 25 245
175 2 4 J -11 228
178 16 18 C -15 252
179 2 4 J -11 183
180 2 4 J -7 180
181 3 7 C 21 274
184 27 33 D 21 163
185 1 3 J -25 152
187 4 4 B -17 148
188 2 1 A -17 212
189 8 6 B 31 185
11 69 88