Sunspot drawing of 1973-3-30

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https://doi.org/10.7891/e-manuscripta-97435



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1973-03-30
08:30
Hs 1304.5:5025
https://doi.org/10.7891/e-manuscripta-97435
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 10 H 6.8 145.4
79 38 D -5.8 79.4
81 5 C 11.7 37.8
3 53