Sunspot drawing of 1960-12-24

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https://doi.org/10.7891/e-manuscripta-91835



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1960-12-24
09:00
Hs 1304.5:1217
https://doi.org/10.7891/e-manuscripta-91835
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
636 2 4 J 10.3 248.2
637 3 7 D -21.1 242.2
638 10 11 D 13.7 157.0
640 2 6 D -9.1 112.1
4 17 28