Sunspot drawing of 1990-2-12

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https://doi.org/10.7891/e-manuscripta-145384



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1990-02-12
10:00
Hs 1304.6:2764
https://doi.org/10.7891/e-manuscripta-145384
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
80 2 3 B -27 146
82 1 3 J 31 112
83 3 7 H 18 112
84 15 19 C 11 139
85 2 4 C 4 120
86 4 7 C -12 96
87 7 7 C 15 115
7 34 50