Sunspot drawing of 2009-9-23

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https://doi.org/10.7891/e-manuscripta-155787



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2009-09-23
07:30
Hs 1304.6:8832
https://doi.org/10.7891/e-manuscripta-155787
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
16 1 3 J -29
17 8 11 D 23
2 9 14