Sunspot drawing of 1973-5-1

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https://doi.org/10.7891/e-manuscripta-97547



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1973-05-01
07:30
Hs 1304.5:5055
https://doi.org/10.7891/e-manuscripta-97547
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
98 6 A -6.4 91.1
102 12 C -13.4 335.7
2 18