Sunspot drawing of 1991-4-23

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https://doi.org/10.7891/e-manuscripta-145836



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1991-04-23
08:00
Hs 1304.6:3135
https://doi.org/10.7891/e-manuscripta-145836
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
188 6 6 B 13 220
192 5 7 C -11 190
197 1 2 A 17 227
201 11 8 B -21 178
207 2 2 A -15 216
208 5 3 B -7 181
209 7 3 A -19 155
210 1 1 A -23 195
211 5 2 B -21 162
9 43 34