Sunspot drawing of 1981-10-17

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https://doi.org/10.7891/e-manuscripta-139373



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1981-10-17
09:15
Hs 1304.6:245
https://doi.org/10.7891/e-manuscripta-139373
Observer : Roberto Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
525 6 10 C -16 294
526 15 20 H -20 340
527 2 4 J 19 328
528 58 50 E -18 332
532 1 2 A 18 20
533 10 16 D -19 321
536 85 84 F -10 273
538 42 41 D -8 249
539 4 6 C 14 328
540 1 1 A -20 302
542 13 13 C -9 236
543 1 1 A -12 286
12 238 248