Sunspot drawing of 1990-9-28

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https://doi.org/10.7891/e-manuscripta-145200



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1990-09-28
08:15
Hs 1304.6:2973
https://doi.org/10.7891/e-manuscripta-145200
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
534 2 3 A -7 78
535 1 3 J -24 52
537 12 14 C 14 30
537A 7 7 B 12 21
543 30 26 D -7 354
546 1 3 J -12 343
547 1 1 A 15 60
548 10 10 C -15 29
549 1 1 A 11 354
550 11 7 B 11 344
10 76 75