Sunspot drawing of 1969-12-11

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https://doi.org/10.7891/e-manuscripta-95685



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1969-12-11
09:00
Hs 1304.5:4026
https://doi.org/10.7891/e-manuscripta-95685
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
499 3 J 16.9 221.0
503 10 C -20.1 225.3
504 2 A 22.6 211.3
3 15