Sunspot drawing of 2012-2-28

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https://doi.org/10.7891/e-manuscripta-157128



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2012-02-28
09:30
Hs 1304.6:9535
https://doi.org/10.7891/e-manuscripta-157128
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
45 4 4 J 15.4 59.1
50 1 2 A 18.2 77.4
51 2 1 A 14.3 44.4
52 2 4 C 10.6 75.5
4 9 11