Sunspot drawing of 1976-12-9

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https://doi.org/10.7891/e-manuscripta-98548



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1976-12-09
08:15
Hs 1304.5:6169
https://doi.org/10.7891/e-manuscripta-98548
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 4 B 22.9 297.3
78 18 C 5.6 266.9
2 22