Sunspot drawing of 1983-12-7

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https://doi.org/10.7891/e-manuscripta-140555



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1983-12-07
09:00
Hs 1304.6:881
https://doi.org/10.7891/e-manuscripta-140555
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
308 3 6 J -2 25
311 5 12 D -20 121
312 5 18 D -13 19
3 13 36