Sunspot drawing of 1989-9-21

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https://doi.org/10.7891/e-manuscripta-144577



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1989-09-21
08:00
Hs 1304.6:2643
https://doi.org/10.7891/e-manuscripta-144577
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
481 12 20 C 26 286
485 4 3 A -15 230
486 53 60 D -26 220
490 3 7 B -19 245
492 8 11 C -23 185
493 5 4 A 15 239
494 4 3 B 35 187
7 89 108