Sunspot drawing of 1999-2-1

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https://doi.org/10.7891/e-manuscripta-150352



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1999-02-01
08:30
Hs 1304.6:5533
https://doi.org/10.7891/e-manuscripta-150352
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
27 2 7 D 18 169
28 2 5 C 26 137
30 3 5 B -26 28
3 7 17