Sunspot drawing of 1989-2-20

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https://doi.org/10.7891/e-manuscripta-144565



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1989-02-20
08:30
Hs 1304.6:2457
https://doi.org/10.7891/e-manuscripta-144565
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
66 6 9 C -17 236
67 2 4 J 17 240
74 10 11 B 20 199
78 3 4 B 25 241
79 3 4 J 27 209
81 7 7 B 31 183
82 2 2 A 18 187
83 43 48 E -12 167
84 16 18 C -21 146
85 37 45 E 16 138
86 9 13 C -9 100
87 2 3 B 38 193
12 140 168