Sunspot drawing of 1981-3-23

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https://doi.org/10.7891/e-manuscripta-139168



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1981-03-23
08:30
Hs 1304.6:74
https://doi.org/10.7891/e-manuscripta-139168
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
135 29 32 D 8 210
138 5 6 C 18 173
139 2 2 A 11 169
140 8 16 G 13 145
142 6 10 C -18 141
143 7 8 J 19 131
144 3 6 B -44 107
145 6 8 C 17 141
146 6 7 B -28 131
147 2 5 C 22 97
10 74 100