Sunspot drawing of 1991-3-17

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https://doi.org/10.7891/e-manuscripta-145985



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1991-03-17
11:30
Hs 1304.6:3105
https://doi.org/10.7891/e-manuscripta-145985
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
110 9 14 B -23 345
115 9 12 B -26 329
116 1 3 J -11 336
117 20 50 E -9 287
118 2 4 J -23 275
124 3 9 C 21 261
125 2 5 J -2 230
126 3 7 J -17 226
129 2 3 A -21 316
132 1 2 A -12 195
133 3 7 C -20 194
11 55 116