Sunspot drawing of 1977-12-10

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https://doi.org/10.7891/e-manuscripta-98893



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1977-12-10
08:30
Hs 1304.5:6466
https://doi.org/10.7891/e-manuscripta-98893
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
164 7 D -21.1 201.5
168 46 E -25.7 134.3
170 6 C -17.2 190.1
171 6 B 0.5 160.2
172 9 D 24.4 91.4
173 3 A -21.5 70.5
6 77