Sunspot drawing of 1974-10-16

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https://doi.org/10.7891/e-manuscripta-97797



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1974-10-16
08:00
Hs 1304.5:5510
https://doi.org/10.7891/e-manuscripta-97797
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
164 15 D 10.2 283.5
165 31 D 7.6 272.5
2 46