Sunspot drawing of 1991-4-30

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https://doi.org/10.7891/e-manuscripta-145804



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1991-04-30
14:15
Hs 1304.6:3142
https://doi.org/10.7891/e-manuscripta-145804
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
212 4 5 C -30 138
213 1 2 A -21 64
215 1 3 J 9 42
216 1 4 J -21 25
217 4 6 B -40 68
218 4 5 B -15 31
219 15 23 C 8 33
220 1 3 J -5 15
221 9 16 C -27 86
224 3 3 A -15 65
225 4 7 C -11 345
11 47 77