Sunspot drawing of 2011-4-21

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https://doi.org/10.7891/e-manuscripta-156912



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2011-04-21
08:45
Hs 1304.6:9281
https://doi.org/10.7891/e-manuscripta-156912
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
56 1 3 J 6.8 283.9
58 14 20 E 16.4 265.6
61 10 17 D -17.3 190.4
63 1 2 A -16.5 174.2
64 6 6 C -26.5 166.0
5 32 48