Sunspot drawing of 1974-3-17

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https://doi.org/10.7891/e-manuscripta-97851



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1974-03-17
07:00
Hs 1304.5:5318
https://doi.org/10.7891/e-manuscripta-97851
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
30 6 B -21.4 149.7
33 1 A -15.9 121.8
2 7