Sunspot drawing of 1974-8-25

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https://doi.org/10.7891/e-manuscripta-97806



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1974-08-25
08:00
Hs 1304.5:5464
https://doi.org/10.7891/e-manuscripta-97806
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
135 3 J -15.5 255.2
137 8 B -12.2 259.8
138 5 J 1.3 182.3
3 16