Sunspot drawing of 1997-7-20

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https://doi.org/10.7891/e-manuscripta-149670



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1997-07-20
08:00
Hs 1304.6:5051
https://doi.org/10.7891/e-manuscripta-149670
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
50 1 1 A 25 259
51 2 4 B -25 299
2 3 5