Sunspot drawing of 1957-12-21

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https://doi.org/10.7891/e-manuscripta-87945



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1957-12-21
08:30
Hs 1304.5:298
https://doi.org/10.7891/e-manuscripta-87945
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
779 4 C 15.8 347.8
780 35 E -15.0 327.8
781 140 E 16.6 313.4
786 6 A -22.9 338.8
787 35 F 22.7 295.5
789 88 E 15.0 278.3
792 10 D 22.8 340.0
794/799 108 F -24.4 263.7
797 5 J -13.9 268.0
798 68 F 23.4 256.7
800 35 F 26.2 241.3
801 14 D -17.3 245.1
802 16 E -19.1 224.6
804 15 D -9.3 292.5
805 8 H 14.5 218.4
15 587