Sunspot drawing of 1986-11-20

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https://doi.org/10.7891/e-manuscripta-142275



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1986-11-20
09:30
Hs 1304.6:1757
https://doi.org/10.7891/e-manuscripta-142275
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
64 2 3 A 24 221
1 2 3