Sunspot drawing of 1988-2-27

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https://doi.org/10.7891/e-manuscripta-143633



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1988-02-27
09:30
Hs 1304.6:2137
https://doi.org/10.7891/e-manuscripta-143633
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
42 2 4 B 19 153
43 2 5 B 29 171
44 1 3 J 17 143
3 5 12