Sunspot drawing of 1987-9-25

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https://doi.org/10.7891/e-manuscripta-142861



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1987-09-25
07:30
Hs 1304.6:2027
https://doi.org/10.7891/e-manuscripta-142861
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
101 2 5 J 13 132
1 2 5