Sunspot drawing of 1974-1-23

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https://doi.org/10.7891/e-manuscripta-97774



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1974-01-23
09:00
Hs 1304.5:5285
https://doi.org/10.7891/e-manuscripta-97774
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
6 2 A -16.6 189.9
7 14 B -17.1 185.0
10 9 C 5.3 197.9
3 25