Sunspot drawing of 1968-12-20

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https://doi.org/10.7891/e-manuscripta-95597



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1968-12-20
09:30
Hs 1304.5:3718
https://doi.org/10.7891/e-manuscripta-95597
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
556 14 B -22.5 230.2
560 1 A 21.3 235.3
561 10 B 30.0 217.4
562 27 D -19.1 208.8
563 4 J -6.0 148.3
564 17 C -11.2 222.8
565 1 A -4.2 190.4
566 4 A -8.7 263.9
567 1 A 14.5 134.5
568 3 J -23.4 110.5
10 82