Sunspot drawing of 1974-11-9

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https://doi.org/10.7891/e-manuscripta-97821



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1974-11-09
08:00
Hs 1304.5:5532
https://doi.org/10.7891/e-manuscripta-97821
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
177 2 B 8.9 287.8
1 2