Sunspot drawing of 1981-8-17

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https://doi.org/10.7891/e-manuscripta-139084



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1981-08-17
07:00
Hs 1304.6:198
https://doi.org/10.7891/e-manuscripta-139084
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
383 1 1 A -10 55
389 5 4 B -18 23
391 52 50 E -15 6
397A 2 2 A 16 5
398 15 18 H -7 343
400 1 3 J -2 326
401 5 9 G -16 323
404 6 6 B -5 326
8 87 93