Sunspot drawing of 1991-10-17

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https://doi.org/10.7891/e-manuscripta-145714



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1991-10-17
10:30
Hs 1304.6:3291
https://doi.org/10.7891/e-manuscripta-145714
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
550 1 4 J 7 16
552 17 24 D -22 9
554 5 4 B 16 1
555 5 4 B 3 360
560 11 13 D -3 341
561 6 8 C -19 337
562 12 13 C -23 330
563 36 37 D 22 299
8 93 107