Sunspot drawing of 1988-2-13

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https://doi.org/10.7891/e-manuscripta-143841



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1988-02-13
09:00
Hs 1304.6:2123
https://doi.org/10.7891/e-manuscripta-143841
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
30 1 3 J -34 18
32 1 12 H 22 327
2 2 15