Sunspot drawing of 1997-9-4

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https://doi.org/10.7891/e-manuscripta-149557



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1997-09-04
07:30
Hs 1304.6:5095
https://doi.org/10.7891/e-manuscripta-149557
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
68 8 11 C 28 109
73 2 3 A 32 15
76 10 16 D -27 357
3 20 30