Sunspot drawing of 1991-4-7

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https://doi.org/10.7891/e-manuscripta-145749



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1991-04-07
08:45
Hs 1304.6:3121
https://doi.org/10.7891/e-manuscripta-145749
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
144 11 18 D 14 59
145 7 17 D -11 58
150 20 23 D 9 31
153 5 5 C -12 357
154 14 10 B -23 348
155 1 1 A -7 333
156 1 3 J 5 330
157 1 2 A 27 329
158 8 6 B -20 25
160 4 4 B -13 11
162 3 3 B -13 345
163 2 2 B -19 357
164 2 3 B -18 346
165 7 12 C -19 306
166 3 3 B 6 305
167 2 2 B -15 287
16 91 114