Sunspot drawing of 1969-12-10

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https://doi.org/10.7891/e-manuscripta-95917



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1969-12-10
09:00
Hs 1304.5:4025
https://doi.org/10.7891/e-manuscripta-95917
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
496 3 J -22.4 269.9
499 3 J 16.4 221.4
502 3 B 7.0 258.1
503 11 C -20.1 225.2
4 20