Sunspot drawing of 1971-1-28

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https://doi.org/10.7891/e-manuscripta-96938



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1971-01-28
08:45
Hs 1304.5:4365
https://doi.org/10.7891/e-manuscripta-96938
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
21 3 J 18.8 206.8
22 6 B 10.6 189.6
23 11 C -12.7 193.0
27 1 A 14.1 169.1
28 27 C -12.7 101.2
29 7 C 2.7 118.8
30 23 E 5.9 66.9
32 7 C 18.2 134.0
34 2 A 8.6 90.1
9 87