Sunspot drawing of 2011-8-17

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https://doi.org/10.7891/e-manuscripta-156816



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2011-08-17
07:45
Hs 1304.6:9383
https://doi.org/10.7891/e-manuscripta-156816
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
162 7 15 D 15.4 61.4
163 6 7 B 18.7 57.8
164 4 5 C -20.8 55.1
165 2 3 B -17.7 114.1
4 19 30