Sunspot drawing of 1964-10-30

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https://doi.org/10.7891/e-manuscripta-94159



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1964-10-30
08:00
Hs 1304.5:2433
https://doi.org/10.7891/e-manuscripta-94159
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
72 4 B 20.7 6.6
73 3 A 23.5 345.7
2 7