Sunspot drawing of 1991-5-17

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https://doi.org/10.7891/e-manuscripta-145806



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1991-05-17
07:00
Hs 1304.6:3155
https://doi.org/10.7891/e-manuscripta-145806
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
226 4 20 D 30 266
227 1 3 J 8 268
228 1 3 J -28 258
229 1 3 J 4 257
232 1 3 J 9 238
233 8 10 C -17 236
236 2 2 A -11 196
237A 5 5 B -8 229
239 12 20 D -12 149
241 7 12 C 13 204
242 3 4 B 18 163
11 45 85