Sunspot drawing of 2017-6-15

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https://doi.org/10.7891/e-manuscripta-159550



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2017-06-15
10:30
Hs 1304.6:10957
https://doi.org/10.7891/e-manuscripta-159550
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
51 1 3 J 11.4 51.2
52 17 18 C 12.8 94.0
2 18 21