Sunspot drawing of 1963-1-20

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https://doi.org/10.7891/e-manuscripta-93640



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1963-01-20
13:30
Hs 1304.5:1879
https://doi.org/10.7891/e-manuscripta-93640
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
5 4 C 9.7 340.6
6 4 C 5.5 340.2
2 8