Sunspot drawing of 1989-9-18

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https://doi.org/10.7891/e-manuscripta-144514



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1989-09-18
08:00
Hs 1304.6:2640
https://doi.org/10.7891/e-manuscripta-144514
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
463 4 7 C 17 354
471 20 22 D 17 333
473 7 7 B 17 326
475 1 3 J -11 328
476 6 9 C 21 318
481 23 24 D 26 285
483 10 20 D 29 352
485 4 4 B -15 233
486 44 36 D -26 221
487 1 2 A -26 205
488 4 4 B -13 341
11 124 138