Sunspot drawing of 2011-4-30

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https://doi.org/10.7891/e-manuscripta-156882



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2011-04-30
09:45
Hs 1304.6:9289
https://doi.org/10.7891/e-manuscripta-156882
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
61 1 3 J -16.0 195.9
66 4 10 D 20.6 186.7
67 2 4 B 15.3 177.7
73 8 10 B -18.1 121.1
74 3 6 C 18.2 62.3
75 1 3 J 18.5 52.2
6 19 36