Sunspot drawing of 1975-9-12

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https://doi.org/10.7891/e-manuscripta-97996



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1975-09-12
06:30
Hs 1304.5:5788
https://doi.org/10.7891/e-manuscripta-97996
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
81 10 J -8.3 168.1
84 2 A 29.8 179.1
85 1 A 18.3 157.9
3 13