Sunspot drawing of 1977-12-19

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https://doi.org/10.7891/e-manuscripta-98695



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1977-12-19
08:30
Hs 1304.5:6474
https://doi.org/10.7891/e-manuscripta-98695
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
174 10 B 15.1 47.6
175 2 A -23.9 57.2
179 10 C 21.3 324.5
180 2 A 22.4 106.1
181 2 B 19.1 19.1
5 26