Sunspot drawing of 1987-3-9

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https://doi.org/10.7891/e-manuscripta-142896



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1987-03-09
08:30
Hs 1304.6:1846
https://doi.org/10.7891/e-manuscripta-142896
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
16 14 16 C 6 288
1 14 16