Sunspot drawing of 1971-2-19

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https://doi.org/10.7891/e-manuscripta-96961



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1971-02-19
08:00
Hs 1304.5:4382
https://doi.org/10.7891/e-manuscripta-96961
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
51 7 D 17.5 216.6
53 4 J 13.7 271.9
54 3 J -13.4 201.9
55 11 C -14.0 186.5
56 24 E -17.6 140.8
57 11 C -6.6 125.1
58 8 B 20.3 232.1
59 3 B 10.3 198.7
8 71