Sunspot drawing of 2011-12-13

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https://doi.org/10.7891/e-manuscripta-156950



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2011-12-13
09:15
Hs 1304.6:9476
https://doi.org/10.7891/e-manuscripta-156950
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
299 1 3 J -18.8 81.7
300 1 3 J 17.3 61.3
306 3 2 B 7.4 39.6
307 2 4 J 8.3 356.6
308 8 14 C -17.8 352.3
309 3 6 C 20.5 301.4
6 18 32