Sunspot drawing of 1974-10-21

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https://doi.org/10.7891/e-manuscripta-97666



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1974-10-21
07:30
Hs 1304.5:5514
https://doi.org/10.7891/e-manuscripta-97666
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
169 7 D 6.5 215.9
1 7