Sunspot drawing of 1970-12-25

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https://doi.org/10.7891/e-manuscripta-96436



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1970-12-25
09:00
Hs 1304.5:4339
https://doi.org/10.7891/e-manuscripta-96436
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
522 3 J 18.8 290.8
524 10 C 12.6 285.2
530 11 B -10.3 227.3
533 8 C 22.1 295.7
535 7 B 17.8 215.3
537 3 J 15.1 154.3
538 5 B 25.4 234.8
7 47