Sunspot drawing of 1977-12-16

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https://doi.org/10.7891/e-manuscripta-98831



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1977-12-16
08:30
Hs 1304.5:6471
https://doi.org/10.7891/e-manuscripta-98831
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
168 3 J -24.9 143.4
172 6 B 23.4 89.6
174 3 B 13.8 45.6
175 7 D -23.1 58.9
176 3 A -26.1 52.8
177 4 A 13.4 37.1
6 26