Sunspot drawing of 1990-3-13

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https://doi.org/10.7891/e-manuscripta-145300



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1990-03-13
08:45
Hs 1304.6:2788
https://doi.org/10.7891/e-manuscripta-145300
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
130 3 8 C 29 182
131 7 12 H -11 179
134 5 8 J 21 102
137 30 27 C 33 75
139 1 2 A 27 99
141 9 9 C 11 142
142 1 2 A -23 82
7 56 68