Sunspot drawing of 1975-10-20

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https://doi.org/10.7891/e-manuscripta-98191



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1975-10-20
07:15
Hs 1304.5:5816
https://doi.org/10.7891/e-manuscripta-98191
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
96 3 J 5.0 98.1
98 3 A -16.1 346.1
99 1 A -11.8 54.7
3 7