Sunspot drawing of 1960-2-20

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https://doi.org/10.7891/e-manuscripta-91550



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1960-02-20
10:00
Hs 1304.5:958
https://doi.org/10.7891/e-manuscripta-91550
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
89 14 E 11.4 6.7
107 7 D -21.1 240.5
108 6 D 7.7 225.3
109 1 A 24.5 276.9
4 28