Sunspot drawing of 2005-4-15

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https://doi.org/10.7891/e-manuscripta-153141



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2005-04-15
12:15
Hs 1304.6:7431
https://doi.org/10.7891/e-manuscripta-153141
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 2 3 J -6.8 122.0
39 6 12 D 1.7 42.5
40 3 2 B 12.0 103.5
41 4 6 C -9.9 32.1
4 15 23