Sunspot drawing of 1991-7-21

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https://doi.org/10.7891/e-manuscripta-145873



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1991-07-21
08:15
Hs 1304.6:3215
https://doi.org/10.7891/e-manuscripta-145873
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
377 8 14 D -26 87
378 10 11 C -22 66
379 1 3 J 21 51
382 10 12 C -11 24
383 9 17 D 8 357
384 1 3 J 5 3
385 1 3 J -5 11
386 1 4 J -17 2
387 1 1 A 9 52
388 4 3 A -26 19
389 11 15 D -14 358
390 23 35 D 10 340
391 7 6 B -2 62
392 3 3 B -10 14
393 4 10 C -26 347
394 1 3 J 2 338
16 95 143