Sunspot drawing of 1974-1-18

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https://doi.org/10.7891/e-manuscripta-97688



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1974-01-18
09:00
Hs 1304.5:5280
https://doi.org/10.7891/e-manuscripta-97688
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
3 5 J -11.8 244.7
5 3 J -15.4 216.7
6 7 D -16.6 194.7
7 3 A -17.8 180.9
8 12 D -13.4 173.5
5 30