Sunspot drawing of 1999-4-27

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https://doi.org/10.7891/e-manuscripta-150493



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1999-04-27
08:15
Hs 1304.6:5608
https://doi.org/10.7891/e-manuscripta-150493
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
97 3 4 J -13 108
100 20 18 C 30 40
101 6 9 G 16 33
102 18 24 D 21 33
4 47 55