Sunspot drawing of 2016-4-19

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https://doi.org/10.7891/e-manuscripta-159072



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2016-04-19
08:00
Hs 1304.6:10627
https://doi.org/10.7891/e-manuscripta-159072
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
84 4 10 H 10.2 347.4
87 3 5 C 4.3 238.7
2 7 15