Sunspot drawing of 1964-10-20

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https://doi.org/10.7891/e-manuscripta-94122



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1964-10-20
08:30
Hs 1304.5:2427
https://doi.org/10.7891/e-manuscripta-94122
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
70 10 A 28.6 148.6
1 10