Sunspot drawing of 2013-2-23

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https://doi.org/10.7891/e-manuscripta-157788



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2013-02-23
09:00
Hs 1304.6:9808
https://doi.org/10.7891/e-manuscripta-157788
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
39 2 1 A -10.1 7.7
40 1 3 J 12.3 39.4
41 2 5 J -18.5 347.9
43 1 4 J 10.8 64.1
4 6 13