Sunspot drawing of 1981-2-17

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https://doi.org/10.7891/e-manuscripta-139152



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1981-02-17
08:30
Hs 1304.6:46
https://doi.org/10.7891/e-manuscripta-139152
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
67 3 10 D 11 327
79 48 36 D 18 261
80 6 7 H 11 260
81 18 15 D -19 255
84 7 9 C 14 236
85 22 17 C 11 248
86 2 2 A 13 181
7 106 96