Sunspot drawing of 1975-8-31

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https://doi.org/10.7891/e-manuscripta-98031



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1975-08-31
07:00
Hs 1304.5:5777
https://doi.org/10.7891/e-manuscripta-98031
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 5 A 0.5 322.6
78 1 A 11.4 283.6
79 4 A 7.2 258.1
3 10