Sunspot drawing of 1998-12-21

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https://doi.org/10.7891/e-manuscripta-150052



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1998-12-21
09:00
Hs 1304.6:5502
https://doi.org/10.7891/e-manuscripta-150052
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
331A 1 3 J 24 354
334 9 26 E 20 256
335 6 15 D 19 219
3 16 44