Sunspot drawing of 2012-2-21

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https://doi.org/10.7891/e-manuscripta-157056



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2012-02-21
08:45
Hs 1304.6:9529
https://doi.org/10.7891/e-manuscripta-157056
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 1 2 A 28.5 195.7
38 1 3 J 11.2 195.2
41 5 4 B 14.0 133.2
43 11 17 D 14.8 176.5
4 18 26