Sunspot drawing of 1977-12-13

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https://doi.org/10.7891/e-manuscripta-98809



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1977-12-13
09:00
Hs 1304.5:6468
https://doi.org/10.7891/e-manuscripta-98809
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
168 14 C -25.4 138.7
172 7 C 24.2 90.8
174 3 B 15.1 50.0
3 24