Sunspot drawing of 1974-7-20

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https://doi.org/10.7891/e-manuscripta-97869



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1974-07-20
09:30
Hs 1304.5:5428
https://doi.org/10.7891/e-manuscripta-97869
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
105 6 H -8.0 15.5
107 21 C -10.7 340.0
111 4 A -4.0 343.0
112 15 C -14.2 295.1
4 46