Sunspot drawing of 1974-8-13

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https://doi.org/10.7891/e-manuscripta-97713



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1974-08-13
07:30
Hs 1304.5:5452
https://doi.org/10.7891/e-manuscripta-97713
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
127 4 H -8.3 18.7
128 7 C -6.8 7.0
129 2 A -18.9 347.6
130 3 A 8.4 312.5
131 20 D -6.8 340.1
133 7 B -17.6 337.6
134 4 B 8.6 322.5
135 3 J -14.0 256.7
8 50