Sunspot drawing of 1969-12-20

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https://doi.org/10.7891/e-manuscripta-95786



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1969-12-20
09:30
Hs 1304.5:4035
https://doi.org/10.7891/e-manuscripta-95786
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
506 12 C -13.0 88.2
507 2 A 6.1 89.2
511 3 J 11.4 78.9
513 18 E 12.5 63.1
516 14 C -10.9 63.5
517 6 D 10.5 9.0
518 4 B -27.1 91.9
519 8 B -13.0 6.4
8 67