Sunspot drawing of 1986-10-7

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https://doi.org/10.7891/e-manuscripta-142168



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1986-10-07
08:00
Hs 1304.6:1720
https://doi.org/10.7891/e-manuscripta-142168
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
53 1 1 A 8 107
54 14 18 C 34 94
55 2 1 A -3 86
3 17 20