Sunspot drawing of 1988-2-20

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https://doi.org/10.7891/e-manuscripta-143608



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1988-02-20
09:00
Hs 1304.6:2130
https://doi.org/10.7891/e-manuscripta-143608
Observer : Marco Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
32 1 10 H 21 328
33 5 8 B -15 316
34 5 9 B 18 317
37 3 7 C -10 31
38 1 3 J 38 345
5 15 37