Sunspot drawing of 2019-4-18

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https://doi.org/10.7891/e-manuscripta-160511



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2019-04-18
08:00
Hs 1304.6:11497
https://doi.org/10.7891/e-manuscripta-160511
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 2 5 H 5.5 299.3
14 3 5 B 4.2 259.2
2 5 10