Sunspot drawing of 1974-1-24

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https://doi.org/10.7891/e-manuscripta-97717



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1974-01-24
10:15
Hs 1304.5:5286
https://doi.org/10.7891/e-manuscripta-97717
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
7 5 B -17.0 185.4
10 2 A 6.2 195.5
2 7