Sunspot drawing of 1991-5-18

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https://doi.org/10.7891/e-manuscripta-145847



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1991-05-18
07:15
Hs 1304.6:3156
https://doi.org/10.7891/e-manuscripta-145847
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
226 3 10 H 30 264
227 2 3 J 7 267
228 1 3 J -27 257
232 1 3 J 9 238
233 2 4 J -17 235
237A 4 6 C -9 229
239 18 35 D -12 148
241 2 3 B 13 207
242 3 5 A 18 164
243 2 3 B 18 140
244 2 3 J -28 105
11 40 78