Sunspot drawing of 2019-3-21

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https://doi.org/10.7891/e-manuscripta-160547



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2019-03-21
08:30
Hs 1304.6:11472
https://doi.org/10.7891/e-manuscripta-160547
Observer : Sergio Cortesi
Seeing (SIDC) : 5
Group Not Weighted Weighted Type Latitude Carrington Longit.
7 1 2 A 2.0 260.0
9 15 25 D 8.0 282.7
2 16 27