Sunspot drawing of 2012-9-18

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https://doi.org/10.7891/e-manuscripta-157166



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2012-09-18
07:30
Hs 1304.6:9693
https://doi.org/10.7891/e-manuscripta-157166
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
241 3 6 C -12
243 4 6 C -13
245 1 2 A -23
246 2 2 A 18
247 2 6 D 7
5 12 22