Sunspot drawing of 1990-1-31

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https://doi.org/10.7891/e-manuscripta-145188



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1990-01-31
10:15
Hs 1304.6:2754
https://doi.org/10.7891/e-manuscripta-145188
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
46 40 50 F -10 339
51 1 3 J 12 289
52 3 5 H 11 306
57 11 15 G 24 324
58 17 20 D -15 315
60 10 12 B 30 284
63 15 21 C 14 301
64 8 10 C 24 263
65 8 10 C 11 346
66 4 7 C 40 357
67 12 12 C -12 325
68 1 2 A 20 290
69 4 3 A 28 245
70 9 12 C 9 248
71 3 3 A -12 241
15 146 185