Sunspot drawing of 1961-9-4

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https://doi.org/10.7891/e-manuscripta-92764



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1961-09-04
07:00
Hs 1304.5:1454
https://doi.org/10.7891/e-manuscripta-92764
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
260 56 E 13.2 78.8
1 56