Sunspot drawing of 1991-7-20

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https://doi.org/10.7891/e-manuscripta-145821



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1991-07-20
07:15
Hs 1304.6:3214
https://doi.org/10.7891/e-manuscripta-145821
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
370 1 3 J -10 142
377 11 13 D -26 86
378 25 21 C -22 64
379 2 4 J 21 51
382 7 11 B -11 20
383 5 15 H 9 355
384 1 3 J 5 2
385 2 4 J -5 10
386 1 4 J -17 1
387 1 1 A 9 52
388 4 4 B -26 19
389 7 15 D -14 357
390 2 6 D 12 341
13 69 104