Sunspot drawing of 1998-2-20

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https://doi.org/10.7891/e-manuscripta-150092



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1998-02-20
08:30
Hs 1304.6:5237
https://doi.org/10.7891/e-manuscripta-150092
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
26 14 21 D -25 31
33 1 1 A -21 335
34 1 1 A -33 275
3 16 23