Sunspot drawing of 2004-2-13

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https://doi.org/10.7891/e-manuscripta-152800



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2004-02-13
10:30
Hs 1304.6:7066
https://doi.org/10.7891/e-manuscripta-152800
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
20 2 4 C -6.5 26.3
22 4 9 D -9.2 308.5
23 7 8 B 15.8 309.8
25 4 6 B -10.5 337.0
26 2 5 C -16.4 270.9
5 19 32