Sunspot drawing of 1997-4-1

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https://doi.org/10.7891/e-manuscripta-149724



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1997-04-01
07:30
Hs 1304.6:4954
https://doi.org/10.7891/e-manuscripta-149724
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
18 7 20 C -24 295
1 7 20