Sunspot drawing of 1988-4-29

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https://doi.org/10.7891/e-manuscripta-143689



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1988-04-29
07:15
Hs 1304.6:2191
https://doi.org/10.7891/e-manuscripta-143689
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
87 4 5 J -18 131
88 16 25 C -19 109
91 7 4 B -23 137
3 27 34