Sunspot drawing of 1991-2-15

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https://doi.org/10.7891/e-manuscripta-145870



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1991-02-15
08:45
Hs 1304.6:3082
https://doi.org/10.7891/e-manuscripta-145870
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
55 11 20 D 11 28
56 8 16 D 14 10
61 7 10 C -12 330
62 2 4 J -5 324
63 7 11 B -6 308
66 11 14 C -11 348
68 3 7 C -13 13
70 9 12 B 28 289
73 12 18 C 23 287
74 5 10 J -13 265
75 3 4 B -19 342
76 15 14 B -14 351
77 8 9 B -17 257
78 3 9 D -18 227
14 104 158