Sunspot drawing of 1981-9-17

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https://doi.org/10.7891/e-manuscripta-139365



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1981-09-17
08:15
Hs 1304.6:226
https://doi.org/10.7891/e-manuscripta-139365
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
449 1 2 A -9 48
454 12 14 C 19 338
457 9 8 C -17 358
458 24 27 D 15 342
460 5 3 A -4 312
463 6 2 A -16 310
464 2 4 J 10 292
465 9 10 C -8 288
468 9 14 D 10 264
469 2 1 A -20 345
470 2 1 A 14 307
471 5 12 D -8 252
12 86 98