Sunspot drawing of 1987-11-11

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https://doi.org/10.7891/e-manuscripta-142949



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1987-11-11
09:00
Hs 1304.6:2055
https://doi.org/10.7891/e-manuscripta-142949
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
125 1 3 J -22 249
128 5 10 D 32 270
130 1 3 J 17 166
131 3 4 A 21 212
4 10 20