Sunspot drawing of 1987-9-29

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https://doi.org/10.7891/e-manuscripta-142978



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1987-09-29
07:30
Hs 1304.6:2030
https://doi.org/10.7891/e-manuscripta-142978
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
101 1 3 J 14 133
105 1 3 J -24 344
106 4 10 D 31 334
3 6 16