Sunspot drawing of 1981-3-21

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https://doi.org/10.7891/e-manuscripta-139130



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1981-03-21
08:45
Hs 1304.6:73
https://doi.org/10.7891/e-manuscripta-139130
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
124A 3 3 B 14 264
135 40 31 D 8 209
137 8 4 B 12 190
138 6 8 C 19 175
139 11 12 C 11 167
140 24 24 G 14 145
142 9 9 C -18 139
143 2 3 J 19 131
144 3 4 A -44 111
9 106 98