Sunspot drawing of 1964-12-24

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https://doi.org/10.7891/e-manuscripta-94070



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1964-12-24
08:45
Hs 1304.5:2473
https://doi.org/10.7891/e-manuscripta-94070
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
90 5 J 33.1 350.7
91 5 C 33.8 341.0
2 10