Sunspot drawing of 1987-6-1

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https://doi.org/10.7891/e-manuscripta-142812



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1987-06-01
07:30
Hs 1304.6:1919
https://doi.org/10.7891/e-manuscripta-142812
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
50 8 12 C 22 250
1 8 12