Sunspot drawing of 1986-10-13

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https://doi.org/10.7891/e-manuscripta-142199



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1986-10-13
08:30
Hs 1304.6:1726
https://doi.org/10.7891/e-manuscripta-142199
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
54 1 3 J 34 94
55 10 12 C -4 85
2 11 15