Sunspot drawing of 1974-3-12

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https://doi.org/10.7891/e-manuscripta-97860



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1974-03-12
07:30
Hs 1304.5:5313
https://doi.org/10.7891/e-manuscripta-97860
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
26 3 A 3.1 223.4
27 25 C 0.3 242.4
28 9 B -17.0 154.1
3 37