Sunspot drawing of 1984-2-28

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https://doi.org/10.7891/e-manuscripta-140928



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1984-02-28
10:45
Hs 1304.6:946
https://doi.org/10.7891/e-manuscripta-140928
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
35 14 25 H 14 113
36 11 20 D 10 87
38 23 35 C -12 49
40 4 3 B -12 72
41 2 2 A -6 41
42 2 3 B -16 340
6 56 88