Sunspot drawing of 1971-4-16

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https://doi.org/10.7891/e-manuscripta-96797



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1971-04-16
07:45
Hs 1304.5:4432
https://doi.org/10.7891/e-manuscripta-96797
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
117 16 12 D 2.3 179.0
118 11 9 C -6.1 173.5
119 39 15 C 18.9 154.3
120 16 10 C 7.8 156.5
121 11 9 J -17.7 151.2
122 27 15 C -4.5 207.4
123 19 8 C -4.5 216.5
124 3 2 A -14.6 187.3
8 142 80