Sunspot drawing of 2013-9-24

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https://doi.org/10.7891/e-manuscripta-157911



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2013-09-24
08:15
Hs 1304.6:9971
https://doi.org/10.7891/e-manuscripta-157911
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
273 1 4 H -17.7 58.4
276 6 8 C 19.6 78.9
277 9 13 C 8.6 30.1
281 2 3 B -19.4 358.7
4 18 28