Sunspot drawing of 1997-12-5

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https://doi.org/10.7891/e-manuscripta-149796



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1997-12-05
09:00
Hs 1304.6:5172
https://doi.org/10.7891/e-manuscripta-149796
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
107 13 26 C 20 309
109 5 5 B 32 284
2 18 31