Sunspot drawing of 1961-2-18

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https://doi.org/10.7891/e-manuscripta-92602



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1961-02-18
08:00
Hs 1304.5:1268
https://doi.org/10.7891/e-manuscripta-92602
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
41 6 C 6.8 127.1
42 2 B 8.7 245.7
44 3 J -11.5 107.6
45 3 B -3.3 134.7
4 14