Sunspot drawing of 1961-11-20

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https://doi.org/10.7891/e-manuscripta-92747



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1961-11-20
12:30
Hs 1304.5:1517
https://doi.org/10.7891/e-manuscripta-92747
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
318 4 A 6.4 216.1
321 4 B 8.7 183.9
2 8