Sunspot drawing of 1981-9-23

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https://doi.org/10.7891/e-manuscripta-139341



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1981-09-23
13:00
Hs 1304.6:229
https://doi.org/10.7891/e-manuscripta-139341
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
464 2 4 J 10 293
468 16 20 D 11 258
470 4 3 B 13 309
471 7 8 H -8 252
472 3 8 C 20 331
476 1 1 A -8 285
477 1 1 A -13 280
478 2 3 B -21 272
479 13 8 B 10 272
480 11 8 B 21 251
484 6 7 J -9 198
485 6 5 B -5 248
486 5 4 B -8 230
487 1 1 A 16 214
488 1 3 J -14 186
15 79 84