Sunspot drawing of 2015-2-20

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https://doi.org/10.7891/e-manuscripta-158774



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2015-02-20
08:00
Hs 1304.6:10302
https://doi.org/10.7891/e-manuscripta-158774
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
36 1 3 J 7.4 192.1
39 4 7 C -8.0 166.8
40 8 9 B 13.4 104.3
42 1 2 A -7.5 56.5
43 4 5 B 19.7 55.2
5 18 26