Sunspot drawing of 1987-10-17

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https://doi.org/10.7891/e-manuscripta-142789



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1987-10-17
10:15
Hs 1304.6:2038
https://doi.org/10.7891/e-manuscripta-142789
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
110 41 60 D 23 193
111 3 7 J -30 183
112 2 5 J -27 236
113 21 33 D -23 209
114 1 2 A -8 189
5 68 107