Sunspot drawing of 2012-2-18

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https://doi.org/10.7891/e-manuscripta-157098



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2012-02-18
10:30
Hs 1304.6:9527
https://doi.org/10.7891/e-manuscripta-157098
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
34 1 2 D -20.7 287.4
37 2 4 C 28.3 198.2
38 5 6 C 10.3 194.7
40 5 4 B -22.9 261.7
41 3 3 B 16.9 135.0
5 16 19