Sunspot drawing of 2011-8-20

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https://doi.org/10.7891/e-manuscripta-156940



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2011-08-20
08:00
Hs 1304.6:9386
https://doi.org/10.7891/e-manuscripta-156940
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 16 24 D 14.9 62.0
163 4 3 A 19.9 55.4
164 6 8 C -22.7 54.0
167 2 4 B 19.1 357.7
4 28 39