Sunspot drawing of 1997-9-17

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https://doi.org/10.7891/e-manuscripta-149840



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1997-09-17
07:30
Hs 1304.6:5108
https://doi.org/10.7891/e-manuscripta-149840
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 1 3 J 21 323
78 2 7 J -24 298
80 8 12 D 22 314
81 24 28 D 27 228
4 35 50