Sunspot drawing of 1975-7-31

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https://doi.org/10.7891/e-manuscripta-98185



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1975-07-31
06:30
Hs 1304.5:5749
https://doi.org/10.7891/e-manuscripta-98185
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
65 3 J 7.0 68.6
66 10 J 7.6 88.8
67 13 C 4.6 309.5
3 26