Sunspot drawing of 1991-2-18

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https://doi.org/10.7891/e-manuscripta-145846



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1991-02-18
08:30
Hs 1304.6:3085
https://doi.org/10.7891/e-manuscripta-145846
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
61 2 5 B -12 333
62 1 3 J -5 324
66 12 14 D -10 349
70 4 4 B 26 291
73 14 11 C 23 286
74 16 12 C -13 264
75 8 12 B -24 347
76 2 6 J -13 356
77 10 10 B -17 258
78 29 26 D -17 231
80 5 6 C -13 253
81 10 7 B 30 229
82 4 6 C -4 224
83 2 6 G -12 194
84 10 30 E -21 194
15 129 158