Sunspot drawing of 1957-12-15

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https://doi.org/10.7891/e-manuscripta-87939



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1957-12-15
13:50
Hs 1304.5:292
https://doi.org/10.7891/e-manuscripta-87939
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
756 5 J -20.8 82.7
757 12 D 9.3 81.1
771 21 E 11.7 70.6
775 3 J -19.3 5.9
777 21 C -12.1 8.0
779 1 A 17.3 343.5
780/790 60 F -14.9 325.7
781 54 E 18.3 313.3
782 13 D 5.3 83.3
783 7 D 13.3 38.2
784 2 B 11.7 22.1
785 4 A -22.9 354.0
786 7 B -24.0 344.9
787 13 D 22.2 297.7
14 223