Sunspot drawing of 1960-12-21

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https://doi.org/10.7891/e-manuscripta-91853



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1960-12-21
09:00
Hs 1304.5:1214
https://doi.org/10.7891/e-manuscripta-91853
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
635 6 B -14.4 285.0
636 16 D 11.3 244.5
637 34 D -21.2 241.9
638 7 D 13.8 156.2
4 63