Sunspot drawing of 1987-7-29

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https://doi.org/10.7891/e-manuscripta-142790



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1987-07-29
08:00
Hs 1304.6:1970
https://doi.org/10.7891/e-manuscripta-142790
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
70 8 11 C -23 182
73 2 1 A -21 193
74 26 28 C 30 142
75 8 9 B -26 172
76 2 3 B 21 150
5 46 52