Sunspot drawing of 1984-3-1

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https://doi.org/10.7891/e-manuscripta-140934



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1984-03-01
13:30
Hs 1304.6:947
https://doi.org/10.7891/e-manuscripta-140934
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
36 13 25 D 10 88
38 15 27 D -12 49
40 8 16 C -12 73
42 4 3 B -16 343
4 40 71