Sunspot drawing of 2011-12-17

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https://doi.org/10.7891/e-manuscripta-156955



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2011-12-17
09:45
Hs 1304.6:9478
https://doi.org/10.7891/e-manuscripta-156955
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
307 1 3 J 8.1 357.9
308 1 3 J -18.6 352.0
309 1 2 A 19.4 306.2
310 3 3 A -16.8 323.6
311 4 7 C 11.4 299.9
312 2 2 B -29.3 323.8
313 1 3 J -21.4 229.8
7 13 23