Sunspot drawing of 1989-9-20

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https://doi.org/10.7891/e-manuscripta-144593



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1989-09-20
08:00
Hs 1304.6:2642
https://doi.org/10.7891/e-manuscripta-144593
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
471 1 6 H 18 330
476 1 4 J 20 321
481 23 32 E 26 284
485 4 4 B -15 234
486 74 62 D -26 221
487 2 2 A -25 206
490 6 8 B -20 245
492 10 7 B -22 185
493 8 6 B 15 237
9 129 131