Sunspot drawing of 1980-2-17

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https://doi.org/10.7891/e-manuscripta-99928



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1980-02-17
08:30
Hs 1304.5:7118
https://doi.org/10.7891/e-manuscripta-99928
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
83 46 E 8.1 50.3
84 9 B -17.4 37.4
85 12 B 22.6 40.1
86 40 E -18.7 23.5
88 16 D 15.4 81.5
89 6 D -22.2 73.3
92 4 J -24.5 350.1
93 6 C -9.6 325.0
8 139