Sunspot drawing of 1974-12-24

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https://doi.org/10.7891/e-manuscripta-97731



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1974-12-24
09:15
Hs 1304.5:5567
https://doi.org/10.7891/e-manuscripta-97731
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
197 4 H 12.8 104.7
201 7 J 5.2 35.2
206 2 A 10.2 49.8
209 1 A 7.4 25.8
4 14