Sunspot drawing of 1972-2-6

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https://doi.org/10.7891/e-manuscripta-97074



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1972-02-06
15:15
Hs 1304.5:4677
https://doi.org/10.7891/e-manuscripta-97074
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
27 2 A 9.3 307.7
33 7 B -0.3 274.7
34 14 D -19.4 252.7
3 23