Sunspot drawing of 1969-12-7

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https://doi.org/10.7891/e-manuscripta-95883



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1969-12-07
09:00
Hs 1304.5:4022
https://doi.org/10.7891/e-manuscripta-95883
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
496 4 J -21.4 268.1
497 2 A 13.4 234.1
499 4 C 16.0 220.5
500 5 B -10.6 258.6
502 3 B 7.6 255.8
5 18