Sunspot drawing of 1957-12-16

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https://doi.org/10.7891/e-manuscripta-87936



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1957-12-16
09:15
Hs 1304.5:293
https://doi.org/10.7891/e-manuscripta-87936
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
756 5 J -20.9 82.4
757 3 B 9.1 78.8
771 16 E 11.6 70.5
775 7 C -19.6 4.1
777 32 D -13.0 6.4
779 1 A 16.9 343.4
780/790 62 F -14.0 326.0
781 63 E 18.0 312.8
782 10 D 5.1 81.3
783 10 D 13.7 38.5
786 22 C -24.6 342.8
787 28 E 22.6 295.9
788 5 C 25.4 355.6
789 6 J 16.0 282.0
14 270