Sunspot drawing of 1981-1-21

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https://doi.org/10.7891/e-manuscripta-139065



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1981-01-21
08:30
Hs 1304.6:19
https://doi.org/10.7891/e-manuscripta-139065
Observer : Sergio Cortesi
Seeing (SIDC) : 1
Group Not Weighted Weighted Type Latitude Carrington Longit.
22 6 12 D 5 280
24 9 14 H -21 248
26 5 10 C 14 239
27 9 17 D 10 191
28 1 3 J -4 187
29 1 3 J -8 187
30 3 9 G -25 174
7 34 68