Sunspot drawing of 1986-5-21

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https://doi.org/10.7891/e-manuscripta-142134



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1986-05-21
09:15
Hs 1304.6:1592
https://doi.org/10.7891/e-manuscripta-142134
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
24 1 2 A 4 129
28 11 14 B 6 75
29 1 1 A 7 118
3 13 17