Sunspot drawing of 1971-4-22

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https://doi.org/10.7891/e-manuscripta-96658



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1971-04-22
10:30
Hs 1304.5:4437
https://doi.org/10.7891/e-manuscripta-96658
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
117 3 J 1.8 183.5
118 5 H -6.1 175.0
119 22 C 18.3 155.6
120 6 C 8.8 158.3
128 1 A 12.5 124.2
129 5 B -9.6 138.9
130 2 A -18.9 34.5
131 1 A 3.7 153.6
8 45