Sunspot drawing of 1988-2-18

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https://doi.org/10.7891/e-manuscripta-143740



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1988-02-18
08:45
Hs 1304.6:2128
https://doi.org/10.7891/e-manuscripta-143740
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
32 1 10 H 21 329
33 6 10 B -15 318
34 10 10 C 19 317
37 5 12 A -9 31
4 22 42