Sunspot drawing of 1977-12-23

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https://doi.org/10.7891/e-manuscripta-98851



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1977-12-23
08:30
Hs 1304.5:6477
https://doi.org/10.7891/e-manuscripta-98851
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
179 7 C 21.3 325.6
182 1 A -27.1 355.8
183 2 A 16.5 254.7
3 10