Sunspot drawing of 1961-1-31

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https://doi.org/10.7891/e-manuscripta-92490



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1961-01-31
09:00
Hs 1304.5:1250
https://doi.org/10.7891/e-manuscripta-92490
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
23 29 C 7.1 54.3
25 7 G 5.9 117.7
28 9 C 21.5 15.5
31 3 A -16.4 341.2
4 48