Sunspot drawing of 1963-2-12

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https://doi.org/10.7891/e-manuscripta-93647



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1963-02-12
13:00
Hs 1304.5:1901
https://doi.org/10.7891/e-manuscripta-93647
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
20 2 B 9.6 22.9
21 4 J 9.0 341.9
2 6