Sunspot drawing of 2016-5-7

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https://doi.org/10.7891/e-manuscripta-159089



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2016-05-07
08:30
Hs 1304.6:10643
https://doi.org/10.7891/e-manuscripta-159089
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
99 6 6 B 3.8 24.5
100 3 6 H 10.8 358.2
2 9 12