Sunspot drawing of 1969-12-8

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https://doi.org/10.7891/e-manuscripta-95980



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1969-12-08
08:45
Hs 1304.5:4023
https://doi.org/10.7891/e-manuscripta-95980
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
496 4 J -21.5 268.1
499 8 C 15.8 220.4
500 1 A -11.3 259.8
502 7 B 6.9 255.5
4 20