Sunspot drawing of 1974-8-19

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https://doi.org/10.7891/e-manuscripta-97854



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1974-08-19
09:00
Hs 1304.5:5458
https://doi.org/10.7891/e-manuscripta-97854
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
131 3 J -3.7 343.7
133 3 C -18.1 335.9
134 12 C 9.9 327.3
135 3 J -14.3 256.9
137 2 B -10.7 259.0
138 3 J 0.6 180.8
6 26