Sunspot drawing of 2012-1-21

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https://doi.org/10.7891/e-manuscripta-157087



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2012-01-21
09:30
Hs 1304.6:9506
https://doi.org/10.7891/e-manuscripta-157087
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
14 2 5 H 29
15 9 24 E 17
16 3 6 C 12
20 6 11 D 18
21 1 2 A 16
22 1 3 J 8
6 22 51