Sunspot drawing of 1988-2-23

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https://doi.org/10.7891/e-manuscripta-143742



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1988-02-23
08:00
Hs 1304.6:2133
https://doi.org/10.7891/e-manuscripta-143742
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
32 2 10 H 21 327
39 1 1 A 25 251
2 3 11