Sunspot drawing of 1971-1-23

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https://doi.org/10.7891/e-manuscripta-96943



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1971-01-23
08:45
Hs 1304.5:4361
https://doi.org/10.7891/e-manuscripta-96943
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
20 27 D 16.7 223.2
21 10 G 18.0 212.4
22 13 C 9.3 192.7
23 26 D -12.7 191.3
25 6 B 11.3 260.3
26 1 A 26.1 225.1
27 6 C 12.8 166.4
7 89