Sunspot drawing of 1973-9-12

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https://doi.org/10.7891/e-manuscripta-97402



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1973-09-12
08:30
Hs 1304.5:5176
https://doi.org/10.7891/e-manuscripta-97402
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
179 3 H 13.3 165.9
183 4 B -10.9 136.3
185 11 B -9.9 152.1
3 18