Sunspot drawing of 1973-1-16

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https://doi.org/10.7891/e-manuscripta-97545



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1973-01-16
14:00
Hs 1304.5:4959
https://doi.org/10.7891/e-manuscripta-97545
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
15 6 J 9.8 317.5
1 6