Sunspot drawing of 1991-12-13

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https://doi.org/10.7891/e-manuscripta-145740



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1991-12-13
10:15
Hs 1304.6:3333
https://doi.org/10.7891/e-manuscripta-145740
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
638 12 12 B 18 351
639 1 3 J 10 354
641 24 27 E -18 341
642 61 60 E 9 307
645 20 25 D -11 4
648 6 13 C -27 334
649 10 12 C -14 328
651 16 18 C -4 270
652 12 14 C -17 255
655 1 1 A -26 284
10 163 185