Sunspot drawing of 1991-10-21

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https://doi.org/10.7891/e-manuscripta-145722



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1991-10-21
08:15
Hs 1304.6:3295
https://doi.org/10.7891/e-manuscripta-145722
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
560 1 2 A -4 343
561A 1 3 J -18 329
563 27 27 C 22 296
566 10 12 D -12 307
568 1 2 A 9 305
569 3 5 B -22 302
570 3 5 B -17 234
571 1 3 J 20 197
8 47 59