Sunspot drawing of 1986-8-21

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https://doi.org/10.7891/e-manuscripta-142263



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1986-08-21
07:15
Hs 1304.6:1681
https://doi.org/10.7891/e-manuscripta-142263
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
48 12 12 B -10 323
1 12 12