Sunspot drawing of 1989-2-28

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https://doi.org/10.7891/e-manuscripta-144688



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1989-02-28
13:30
Hs 1304.6:2460
https://doi.org/10.7891/e-manuscripta-144688
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
85 4 7 H 16 137
86 4 6 C -8 105
88 6 20 D 15 117
89 2 3 A 29 117
91 3 6 C -24 67
92 23 32 D -20 47
93B 1 2 A 38 64
94 9 14 C 12 54
95 4 6 B 17 44
97 1 3 J -16 108
98 3 4 B 39 43
11 60 103