Sunspot drawing of 1961-3-1

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https://doi.org/10.7891/e-manuscripta-92606



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1961-03-01
11:00
Hs 1304.5:1277
https://doi.org/10.7891/e-manuscripta-92606
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
47 1 3 J 6.9 60.0
1 1 3