Sunspot drawing of 1989-4-18

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https://doi.org/10.7891/e-manuscripta-144533



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1989-04-18
08:00
Hs 1304.6:2502
https://doi.org/10.7891/e-manuscripta-144533
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
173 13 14 C -23 153
174 1 3 J 14 141
175 6 11 G 16 205
176 20 23 C -20 161
177 29 47 F 10 126
181 15 20 D -17 82
182 11 15 C 19 80
183 13 13 H -22 68
8 108 146