Sunspot drawing of 1999-12-31

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https://doi.org/10.7891/e-manuscripta-150460



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1999-12-31
09:00
Hs 1304.6:5808
https://doi.org/10.7891/e-manuscripta-150460
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
416 21 20 E 37 13
417 1 1 A -28 53
418 9 10 B -17 333
419 2 4 J 10 322
420 3 5 C 10 306
5 36 40