Sunspot drawing of 2013-4-1

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https://doi.org/10.7891/e-manuscripta-157886



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2013-04-01
08:00
Hs 1304.6:9831
https://doi.org/10.7891/e-manuscripta-157886
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
75 2 6 D 14.9 255.1
77 4 5 C -10.0 236.6
78 7 8 B -21.8 201.4
79 1 3 J 10.3 192.5
81 1 2 A 1.5 185.4
82 2 5 H -18.8 158.6
6 17 29