Sunspot drawing of 1974-1-4

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https://doi.org/10.7891/e-manuscripta-97826



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1974-01-04
08:30
Hs 1304.5:5268
https://doi.org/10.7891/e-manuscripta-97826
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
1 11 B -15.2 41.6
1 11