Sunspot drawing of 1970-2-21

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https://doi.org/10.7891/e-manuscripta-96487



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1970-02-21
10:45
Hs 1304.5:4080
https://doi.org/10.7891/e-manuscripta-96487
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
68 10 B -14.6 6.9
70 27 E -22.8 338.1
74 18 D -15.0 302.0
75 12 C -20.0 291.3
80 5 J -9.4 269.7
81 4 J 1.6 282.9
82 14 D -4.8 258.4
83 11 D 17.6 262.0
84 6 J 10.1 312.0
85 10 D 14.9 232.1
10 117