Sunspot drawing of 1983-2-21

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https://doi.org/10.7891/e-manuscripta-140433



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1983-02-21
08:30
Hs 1304.6:639
https://doi.org/10.7891/e-manuscripta-140433
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
43 3 5 B -16 299
44 2 5 J -13 266
45 1 3 J -9 248
46 2 6 J 14 223
4 8 19