Sunspot drawing of 1973-3-18

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https://doi.org/10.7891/e-manuscripta-97575



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1973-03-18
08:15
Hs 1304.5:5013
https://doi.org/10.7891/e-manuscripta-97575
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
69 24 D -7.1 339.0
70 10 C -13.1 331.1
72 1 A 7.0 308.7
74 2 A 14.9 224.4
4 37