Sunspot drawing of 1991-2-17

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https://doi.org/10.7891/e-manuscripta-145746



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1991-02-17
10:45
Hs 1304.6:3084
https://doi.org/10.7891/e-manuscripta-145746
Observer : Andrea Manna
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
56 1 3 J 15 11
61 1 2 A -12 332
62 4 5 B -5 324
66 11 13 B -10 349
70 3 4 B 28 288
73 8 11 J 23 286
74 10 12 C -12 266
76 7 9 C -14 352
77 7 8 B -17 257
78 18 26 D -16 230
80 9 11 B -12 252
81 4 5 B 30 231
12 83 109