Sunspot drawing of 1988-4-27

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https://doi.org/10.7891/e-manuscripta-143830



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1988-04-27
13:30
Hs 1304.6:2189
https://doi.org/10.7891/e-manuscripta-143830
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
87 1 3 J -18 132
88 14 27 D -19 109
2 15 30