Sunspot drawing of 1981-7-20

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https://doi.org/10.7891/e-manuscripta-139203



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1981-07-20
06:30
Hs 1304.6:173
https://doi.org/10.7891/e-manuscripta-139203
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
324 14 20 D -8 108
327 5 7 J -27 99
333 1 1 A 25 103
337 4 4 B -10 48
339 2 2 A -19 36
341 12 10 D -9 95
342 21 30 D 15 10
344 7 9 C 5 74
346 4 6 J 10 8
348 3 2 B 5 59
349 16 24 D -7 339
350 3 3 B -8 328
12 92 118