Sunspot drawing of 1970-2-20

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https://doi.org/10.7891/e-manuscripta-96532



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1970-02-20
08:30
Hs 1304.5:4079
https://doi.org/10.7891/e-manuscripta-96532
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
68 24 B -14.5 7.0
70 30 E -22.5 338.3
74 17 D -15.1 301.9
75 13 D -20.1 292.6
77 6 D 21.4 33.6
80 4 H -9.1 269.4
81 4 J 1.9 282.0
82 11 D -4.6 258.9
83 10 D 18.5 261.2
9 119