Sunspot drawing of 1969-4-12

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https://doi.org/10.7891/e-manuscripta-95708



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1969-04-12
13:00
Hs 1304.5:3806
https://doi.org/10.7891/e-manuscripta-95708
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
132 11 H 9.8 195.3
133 3 J -19.1 186.0
136 38 D -7.8 112.8
137 33 D -14.3 123.1
138 3 J 15.0 105.4
141 8 J 10.7 87.7
143 3 J -14.5 60.8
7 99