Sunspot drawing of 1997-10-20

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https://doi.org/10.7891/e-manuscripta-149671



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1997-10-20
07:30
Hs 1304.6:5139
https://doi.org/10.7891/e-manuscripta-149671
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
93 8 9 C 12 169
94 5 5 C 15 139
2 13 14