Sunspot drawing of 1990-9-21

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https://doi.org/10.7891/e-manuscripta-145121



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1990-09-21
07:15
Hs 1304.6:2967
https://doi.org/10.7891/e-manuscripta-145121
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
507 1 3 J -11 175
515 3 5 J 10 150
516 8 14 J -13 146
517 3 3 B 20 133
518 8 14 C -26 143
522 8 9 C 19 118
526 6 8 A 13 153
528 10 15 H -13 103
531 2 1 A -24 95
534 19 22 D -8 79
535 3 4 J -24 55
537 8 15 D 13 26
538 5 7 B 6 32
539 1 1 A 21 82
540 2 2 B -28 43
15 87 123