Sunspot drawing of 1959-12-18

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https://doi.org/10.7891/e-manuscripta-91470



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1959-12-18
11:30
Hs 1304.5:909
https://doi.org/10.7891/e-manuscripta-91470
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
900 13 H 18.0 102.2
906 4 J 6.8 82.9
907 20 D -3.4 77.8
908 12 D -8.0 114.4
909 1 A 24.6 97.9
910 13 D 10.4 43.7
911 13 C -16.4 19.3
913 1 A 11.1 69.2
914 4 J 16.9 354.9
915 6 D 23.0 357.5
916 2 A -7.1 69.1
11 89