Sunspot drawing of 1961-1-10

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https://doi.org/10.7891/e-manuscripta-92566



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1961-01-10
08:30
Hs 1304.5:1232
https://doi.org/10.7891/e-manuscripta-92566
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
2 8 D 20.5 19.7
6 22 D -11.4 307.4
7 1 A 6.3 327.3
3 31