Sunspot drawing of 1974-10-1

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https://doi.org/10.7891/e-manuscripta-97795



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1974-10-01
07:45
Hs 1304.5:5498
https://doi.org/10.7891/e-manuscripta-97795
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
157 13 J 9.3 22.9
158 12 B -11.7 50.8
159 20 D -6.0 18.1
160 4 A -14.4 29.9
161 1 A 14.3 95.7
5 50