Sunspot drawing of 2019-3-20

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https://doi.org/10.7891/e-manuscripta-160513



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2019-03-20
08:15
Hs 1304.6:11471
https://doi.org/10.7891/e-manuscripta-160513
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
7 5 6 A 1.9 259.3
8 1 1 A 8.1 254.5
9 10 16 C 8.6 281.6
3 16 23