Sunspot drawing of 1974-12-13

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https://doi.org/10.7891/e-manuscripta-97763



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1974-12-13
09:30
Hs 1304.5:5556
https://doi.org/10.7891/e-manuscripta-97763
Observer : Araldo Pittini
Seeing (SIDC) : 1
Group Not Weighted Weighted Type Latitude Carrington Longit.
196 27 D 10.3 172.8
197 4 H 13.1 103.3
198 2 A 13.9 223.2
3 33