Sunspot drawing of 2017-2-19

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https://doi.org/10.7891/e-manuscripta-159644



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2017-02-19
10:45
Hs 1304.6:10861
https://doi.org/10.7891/e-manuscripta-159644
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
15 1 2 A 10.3 183.3
16 2 3 B -4.2 124.8
17 1 3 J 20.4 114.3
3 4 8