Sunspot drawing of 1964-1-23

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https://doi.org/10.7891/e-manuscripta-93890



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1964-01-23
09:15
Hs 1304.5:2189
https://doi.org/10.7891/e-manuscripta-93890
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
9 7 C 9.1 75.8
1 7