Sunspot drawing of 2011-7-22

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https://doi.org/10.7891/e-manuscripta-156886



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2011-07-22
08:00
Hs 1304.6:9360
https://doi.org/10.7891/e-manuscripta-156886
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 1 3 J 16.5 168.8
139 8 18 D -23.4 134.1
144 11 15 C 24.1 77.7
3 20 36