Sunspot drawing of 2011-4-4

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https://doi.org/10.7891/e-manuscripta-156892



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2011-04-04
08:00
Hs 1304.6:9264
https://doi.org/10.7891/e-manuscripta-156892
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
40 1 2 A 23.9 158.4
43 5 10 C 15.2 135.8
47 15 22 D 16.1 109.4
49 1 2 A 23.5 34.5
4 22 36