Sunspot drawing of 1981-12-13

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https://doi.org/10.7891/e-manuscripta-139371



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1981-12-13
10:00
Hs 1304.6:292
https://doi.org/10.7891/e-manuscripta-139371
Observer : Roberto Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
633 2 6 C -17 330
634 6 20 D 19 325
637 7 22 E 9 324
638 1 3 J -14 308
639 1 3 J 12 309
640 2 5 J -18 318
641 1 3 J 6 309
643 3 9 G 11 287
644 1 3 J 18 282
645 3 12 D -15 273
646 1 3 J -20 266
647 6 13 D -7 258
649 16 30 D -8 289
653 6 10 C 10 200
14 56 142