Sunspot drawing of 1988-3-28

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https://doi.org/10.7891/e-manuscripta-143682



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1988-03-28
07:30
Hs 1304.6:2166
https://doi.org/10.7891/e-manuscripta-143682
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
60 8 12 C 20 234
61 8 16 C -34 193
62 41 63 D 18 160
63 1 3 J 24 249
64 17 34 D -22 134
5 75 128