Sunspot drawing of 2017-9-8

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https://doi.org/10.7891/e-manuscripta-159421



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2017-09-08
09:00
Hs 1304.6:11032
https://doi.org/10.7891/e-manuscripta-159421
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
69 17 33 D -9.6 119.7
72 11 20 G 12.4 101.7
75 4 4 A 16.7 50.4
76 6 6 B 10.9 43.0
4 38 63