Sunspot drawing of 1966-12-21

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https://doi.org/10.7891/e-manuscripta-94800



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1966-12-21
09:45
Hs 1304.5:3098
https://doi.org/10.7891/e-manuscripta-94800
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
246 2 A 21.9 151.5
252 7 J -6.7 101.6
253 6 B 29.2 63.3
254 6 B 25.4 48.5
4 21