Sunspot drawing of 2015-4-16

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https://doi.org/10.7891/e-manuscripta-158728



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2015-04-16
07:00
Hs 1304.6:10342
https://doi.org/10.7891/e-manuscripta-158728
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
84 3 5 C 11.9 95.3
85 3 8 D 8.8 87.5
89 3 7 D 19.2 61.3
90 2 5 C 4.6 50.4
4 11 25