Sunspot drawing of 1997-4-9

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https://doi.org/10.7891/e-manuscripta-149632



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1997-04-09
07:30
Hs 1304.6:4962
https://doi.org/10.7891/e-manuscripta-149632
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
20 3 5 B -28 211
21 8 8 C 24 218
2 11 13