Sunspot drawing of 1971-4-19

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https://doi.org/10.7891/e-manuscripta-96866



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1971-04-19
07:15
Hs 1304.5:4434
https://doi.org/10.7891/e-manuscripta-96866
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
117 3 J 2.0 182.4
118 11 H -5.4 174.0
119 29 E 19.0 152.1
120 6 C 8.3 157.1
121 3 B -18.3 150.7
122 3 J -3.5 209.5
123 2 A -4.8 219.4
126 6 A -11.0 77.2
127 5 B 18.4 208.9
128 5 A 11.6 125.5
10 73