Sunspot drawing of 1961-3-20

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https://doi.org/10.7891/e-manuscripta-92593



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1961-03-20
07:30
Hs 1304.5:1296
https://doi.org/10.7891/e-manuscripta-92593
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
63 3 J -4.9 221.2
66 6 C 4.4 152.3
73 1 A 3.6 162.6
75 4 C -21.3 81.1
76 6 C 9.3 64.6
5 20