Sunspot drawing of 1981-2-11

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https://doi.org/10.7891/e-manuscripta-139024



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1981-02-11
08:00
Hs 1304.6:40
https://doi.org/10.7891/e-manuscripta-139024
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
61 4 9 B 4 330
62 1 3 J 11 341
67 45 42 D 11 329
68 3 4 C 3 20
71 4 5 C -7 40
72 1 2 A 15 353
73 2 2 A -16 339
74 2 7 G 12 337
76 6 10 C 9 4
77 3 5 C 29 351
78 8 14 D -8 320
79 3 8 C 19 257
80 1 4 H 11 256
81 2 4 C -19 254
82 2 2 A -22 331
15 87 121