Sunspot drawing of 1987-5-29

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https://doi.org/10.7891/e-manuscripta-142824



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1987-05-29
07:30
Hs 1304.6:1916
https://doi.org/10.7891/e-manuscripta-142824
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
50 12 20 C 22 251
1 12 20