Sunspot drawing of 1971-1-13

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https://doi.org/10.7891/e-manuscripta-96804



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1971-01-13
09:00
Hs 1304.5:4355
https://doi.org/10.7891/e-manuscripta-96804
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
4 20 C -7.3 7.1
8 2 A -11.5 331.1
9 3 J 18.8 298.9
10 1 A -23.8 18.1
12 2 A 19.1 289.3
13 5 B -11.0 282.1
14 3 B 2.4 13.7
16 7 C -15.5 303.9
17 1 A 12.7 260.6
9 44