Sunspot drawing of 1987-7-9

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https://doi.org/10.7891/e-manuscripta-143029



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1987-07-09
06:30
Hs 1304.6:1951
https://doi.org/10.7891/e-manuscripta-143029
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
66 8 12 C -18 115
1 8 12