Sunspot drawing of 1974-10-13

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https://doi.org/10.7891/e-manuscripta-97849



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1974-10-13
07:30
Hs 1304.5:5507
https://doi.org/10.7891/e-manuscripta-97849
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 15 C -18.2 317.8
164 33 D 10.4 283.0
165 52 D 7.9 271.9
3 100