Sunspot drawing of 2012-4-20

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https://doi.org/10.7891/e-manuscripta-157184



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2012-04-20
07:45
Hs 1304.6:9569
https://doi.org/10.7891/e-manuscripta-157184
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
93 13 21 D 14.6 108.1
94 3 6 J 11.8 70.6
95 24 24 D -16.0 92.6
96 4 6 C -25.2 159.5
97 6 12 D -23.6 139.5
98 4 8 C -17.5 55.5
99 2 3 B 22.2 107.2
7 56 80