Sunspot drawing of 2011-8-18

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https://doi.org/10.7891/e-manuscripta-156974



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2011-08-18
07:00
Hs 1304.6:9384
https://doi.org/10.7891/e-manuscripta-156974
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 7 16 D 15.3 61.4
163 6 7 B 18.6 57.8
164 5 8 C -20.6 55.6
165 6 6 B -18.4 114.3
166 3 3 B 23.0 73.6
5 27 40