Sunspot drawing of 1981-9-7

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https://doi.org/10.7891/e-manuscripta-139377



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1981-09-07
07:00
Hs 1304.6:218
https://doi.org/10.7891/e-manuscripta-139377
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
420 8 20 D -12 181
422 1 2 A 16 166
426 1 1 A -25 148
431 2 4 J 7 135
432 31 33 D -10 130
433 3 5 J 12 127
436 8 9 H -17 122
437 1 1 A 19 136
439 3 4 J -5 130
440 17 15 D 28 92
441 73 52 E 9 61
442 5 5 J 15 55
444 5 4 B 0 60
445 1 1 A -12 60
447 10 9 B 17 93
448 7 7 B 20 75
449 6 6 C -7 46
17 182 178