Sunspot drawing of 1960-2-21

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https://doi.org/10.7891/e-manuscripta-91630



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1960-02-21
07:30
Hs 1304.5:959
https://doi.org/10.7891/e-manuscripta-91630
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
89 4 C 11.1 2.4
107 7 D -20.9 241.1
108 11 D 7.3 225.6
109 8 D 25.3 274.8
110 3 J 11.5 204.1
5 33