Sunspot drawing of 1974-2-22

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https://doi.org/10.7891/e-manuscripta-97865



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1974-02-22
09:00
Hs 1304.5:5300
https://doi.org/10.7891/e-manuscripta-97865
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
16 2 A -19.4 140.7
18 22 G -18.3 151.2
19 16 B -17.0 133.8
3 40