Sunspot drawing of 1974-6-11

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https://doi.org/10.7891/e-manuscripta-97682



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1974-06-11
06:15
Hs 1304.5:5393
https://doi.org/10.7891/e-manuscripta-97682
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
82 4 B 4.6 129.8
86 2 A -13.3 142.6
88 26 D 4.9 61.9
90 12 C -8.1 166.6
4 44