Sunspot drawing of 1993-12-17

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https://doi.org/10.7891/e-manuscripta-147525



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1993-12-17
08:30
Hs 1304.6:3947
https://doi.org/10.7891/e-manuscripta-147525
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
286 2 4 J 2 275
287 3 11 D 6 330
2 5 15