Sunspot drawing of 1974-8-7

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https://doi.org/10.7891/e-manuscripta-97887



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1974-08-07
08:00
Hs 1304.5:5446
https://doi.org/10.7891/e-manuscripta-97887
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
127 7 H -9.6 18.3
128 11 C -6.5 6.5
129 6 A -18.7 351.2
3 24