Sunspot drawing of 2011-12-18

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https://doi.org/10.7891/e-manuscripta-156868



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2011-12-18
11:15
Hs 1304.6:9479
https://doi.org/10.7891/e-manuscripta-156868
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
307 1 3 J 8.7 358.5
308 1 3 J -18.0 352.7
309 2 5 C 19.5 307.3
311 3 5 C 11.9 300.7
313 2 4 J -21.3 232.4
314 10 11 D -18.3 264.1
6 19 31