Sunspot drawing of 1986-5-20

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https://doi.org/10.7891/e-manuscripta-142250



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1986-05-20
07:30
Hs 1304.6:1591
https://doi.org/10.7891/e-manuscripta-142250
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
24 3 6 B 4 127
27 2 2 A 6 108
28 12 19 C 6 72
3 17 27