Sunspot drawing of 1957-12-19

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https://doi.org/10.7891/e-manuscripta-87927



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1957-12-19
09:00
Hs 1304.5:296
https://doi.org/10.7891/e-manuscripta-87927
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
775 2 B -21.8 2.7
777 12 C -12.6 6.9
779 8 D 17.7 345.7
780 40 E -14.8 327.6
781 133 E 16.5 313.8
786 9 C -23.2 339.9
787 16 F 22.3 295.8
789 22 C 15.4 279.2
790 D -12.1 319.0
791 15 C 13.2 15.4
792 14 D 22.9 340.4
796 2 A 28.1 271.7
797 6 C -12.7 270.0
798/800 24 F 24.1 254.1
779994/ 29 F -24.8 259.5
15 332