Sunspot drawing of 2011-4-1

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https://doi.org/10.7891/e-manuscripta-156722



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2011-04-01
08:00
Hs 1304.6:9261
https://doi.org/10.7891/e-manuscripta-156722
Observer : Marco Cagnotti
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 3 7 G -16.5 200.0
40 1 3 J 23.3 160.4
43 16 29 E 14.8 134.6
47 1 2 A 14.2 107.6
4 21 41