Sunspot drawing of 2011-7-20

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https://doi.org/10.7891/e-manuscripta-156806



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2011-07-20
06:30
Hs 1304.6:9358
https://doi.org/10.7891/e-manuscripta-156806
Observer : Marco Cagnotti
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 1 3 J 15.8 168.3
139 10 15 D -23.1 136.6
142 1 2 A 12.2 185.4
144 2 4 J 23.8 79.4
4 14 24