Sunspot drawing of 1972-2-13

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https://doi.org/10.7891/e-manuscripta-97165



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1972-02-13
08:00
Hs 1304.5:4679
https://doi.org/10.7891/e-manuscripta-97165
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
36 12 C -8.8 143.7
37 9 C 16.3 123.0
38 2 A 7.4 131.5
39 6 J -17.4 97.8
40 11 C 19.9 123.9
41 5 J 23.2 94.4
42 2 A -14.5 94.4
43 3 J -8.3 59.3
8 50