Sunspot drawing of 1981-4-23

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https://doi.org/10.7891/e-manuscripta-139202



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1981-04-23
11:45
Hs 1304.6:98
https://doi.org/10.7891/e-manuscripta-139202
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
188 1 3 J -7 196
191 1 2 A 18 174
193 31 29 H 14 148
196 9 11 C 24 143
197 3 5 J -10 146
201 2 4 C 8 157
207 2 3 B 12 109
208 3 4 B -15 96
209 2 3 J 15 32
211 1 3 J 0 29
10 55 67