Sunspot drawing of 2012-9-22

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https://doi.org/10.7891/e-manuscripta-157000



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2012-09-22
07:45
Hs 1304.6:9697
https://doi.org/10.7891/e-manuscripta-157000
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
247 13 22 E 7.2 181.2
248 2 6 G -22.0 173.9
250 1 2 A 8.7 162.0
3 16 30