Sunspot drawing of 1986-4-1

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https://doi.org/10.7891/e-manuscripta-142026



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1986-04-01
08:00
Hs 1304.6:1562
https://doi.org/10.7891/e-manuscripta-142026
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
16 1 1 A 2 77
1 1 1