Sunspot drawing of 2013-9-20

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https://doi.org/10.7891/e-manuscripta-157808



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2013-09-20
08:30
Hs 1304.6:9967
https://doi.org/10.7891/e-manuscripta-157808
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
265 1 2 A -3.6 144.5
270 7 9 C 0.8 128.9
273 2 5 C -17.5 56.7
274 1 1 A -10.2 73.2
275 1 1 A 2.4 144.3
276 6 6 B 20.0 76.9
277 6 11 D 7.3 27.3
7 24 35