Sunspot drawing of 1974-2-9

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https://doi.org/10.7891/e-manuscripta-97825



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1974-02-09
08:00
Hs 1304.5:5293
https://doi.org/10.7891/e-manuscripta-97825
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
14 5 A 8.2 215.0
15 12 D -17.0 201.6
2 17