Sunspot drawing of 1990-4-17

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https://doi.org/10.7891/e-manuscripta-145344



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1990-04-17
08:00
Hs 1304.6:2817
https://doi.org/10.7891/e-manuscripta-145344
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
195 1 3 J 31 74
200 1 3 J 21 68
202 9 6 B -35 8
202A 29 22 B -31 8
203 10 6 B -9 19
204 49 33 C -13 335
205 3 2 B 17 55
206 45 40 D 31 345
207 3 2 A -18 338
208 4 4 B 12 31
209 1 1 A 15 4
210 2 2 A -7 350
211 32 20 C -13 349
212 9 8 C 23 60
213 4 2 A 16 18
214 1 1 A -38 343
215 5 7 C 22 327
216 1 2 B 25 298
18 209 164