Sunspot drawing of 1987-7-22

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https://doi.org/10.7891/e-manuscripta-142818



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1987-07-22
12:30
Hs 1304.6:1963
https://doi.org/10.7891/e-manuscripta-142818
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
68 3 7 J -31 241
69 14 17 C -28 255
70 13 28 D -23 185
71 5 7 C 21 250
72 6 9 B -19 225
73 2 3 A -20 196
6 43 71