Sunspot drawing of 1977-10-10

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https://doi.org/10.7891/e-manuscripta-98843



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1977-10-10
15:15
Hs 1304.5:6415
https://doi.org/10.7891/e-manuscripta-98843
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
123 3 J -21.4 306.1
124 3 J 19.2 299.7
128 18 D 7.0 207.2
129 6 H 18.8 159.8
4 30