Sunspot drawing of 1975-2-7

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https://doi.org/10.7891/e-manuscripta-98164



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1975-02-07
08:00
Hs 1304.5:5602
https://doi.org/10.7891/e-manuscripta-98164
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
18 5 B -13.5 157.4
21 30 D 1.8 125.9
2 35