Sunspot drawing of 1974-9-30

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https://doi.org/10.7891/e-manuscripta-97715



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1974-09-30
08:00
Hs 1304.5:5497
https://doi.org/10.7891/e-manuscripta-97715
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
157 12 J 8.8 22.3
158 12 B -12.1 51.9
159 25 D -5.6 18.7
160 5 A -14.6 29.3
161 4 A 13.7 94.7
5 58