Sunspot drawing of 1990-9-18

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https://doi.org/10.7891/e-manuscripta-145316



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1990-09-18
08:00
Hs 1304.6:2964
https://doi.org/10.7891/e-manuscripta-145316
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
507 3 5 C -10 175
511 1 2 A -17 207
515 3 7 C 10 150
516 16 21 C -13 146
517 14 20 C 22 136
518 2 2 B -27 143
522 6 7 C 18 120
527 6 4 B -18 128
528 16 25 D -13 103
533 1 1 A -22 117
534 5 8 C -9 79
535 1 3 J -24 58
12 74 105