Sunspot drawing of 1975-1-12

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https://doi.org/10.7891/e-manuscripta-98283



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1975-01-12
09:15
Hs 1304.5:5586
https://doi.org/10.7891/e-manuscripta-98283
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
5 14 J 4.9 198.4
8 10 H 13.1 104.3
11 2 A 3.6 86.4
3 26