Sunspot drawing of 1974-8-18

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https://doi.org/10.7891/e-manuscripta-97889



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1974-08-18
06:45
Hs 1304.5:5457
https://doi.org/10.7891/e-manuscripta-97889
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
131 4 J -3.6 342.6
133 11 C -17.6 338.8
134 21 D 9.9 325.1
135 3 J -14.2 257.5
137 2 B -10.5 258.6
5 41