Sunspot drawing of 1990-8-31

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https://doi.org/10.7891/e-manuscripta-145377



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1990-08-31
14:00
Hs 1304.6:2946
https://doi.org/10.7891/e-manuscripta-145377
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
467 5 8 C -7 74
470 5 9 C -26 63
475 40 50 D 13 33
475A 15 12 B 15 22
481 3 2 B 15 56
482 9 11 C -16 351
483 1 3 J 16 332
484 5 8 C -13 338
486 5 9 C -21 344
487 1 3 J -14 327
488 7 11 C 12 319
489 1 3 J -13 312
12 97 129