Sunspot drawing of 1993-12-18

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https://doi.org/10.7891/e-manuscripta-147544



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1993-12-18
08:30
Hs 1304.6:3948
https://doi.org/10.7891/e-manuscripta-147544
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
286 3 4 J 2 274
287 4 4 A 6 331
288 4 5 J 11 351
3 11 13