Sunspot drawing of 2013-7-31

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https://doi.org/10.7891/e-manuscripta-157862



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2013-07-31
08:15
Hs 1304.6:9921
https://doi.org/10.7891/e-manuscripta-157862
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
204 1 3 J 18.9 83.1
208 4 8 D -7.3 132.2
210 12 12 C -15.6 38.1
211 3 4 B 27.6 89.1
212 4 5 C 14.0 20.4
213 1 2 A 5.1 7.5
214 4 6 D 12.8 339.3
215 1 3 J -25.8 337.7
8 30 43