Sunspot drawing of 1987-7-8

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https://doi.org/10.7891/e-manuscripta-142784



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1987-07-08
10:00
Hs 1304.6:1950
https://doi.org/10.7891/e-manuscripta-142784
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
66 5 6 B -18 113
1 5 6