Sunspot drawing of 1969-4-13

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https://doi.org/10.7891/e-manuscripta-95766



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1969-04-13
08:00
Hs 1304.5:3807
https://doi.org/10.7891/e-manuscripta-95766
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
132 8 H 9.0 195.7
133 4 J -19.8 185.9
136 27 D -8.0 113.6
137 25 D -14.9 123.5
138 3 J 14.8 105.0
141 8 J 10.6 87.4
143 3 J -14.7 62.3
144 7 B 14.7 177.4
145 18 B 19.5 85.0
146 14 D 21.7 59.8
10 117