Sunspot drawing of 1986-10-11

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https://doi.org/10.7891/e-manuscripta-142147



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1986-10-11
08:00
Hs 1304.6:1724
https://doi.org/10.7891/e-manuscripta-142147
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
54 8 9 C 34 92
55 5 4 B -4 79
2 13 13