Sunspot drawing of 1997-9-21

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https://doi.org/10.7891/e-manuscripta-149725



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1997-09-21
10:45
Hs 1304.6:5112
https://doi.org/10.7891/e-manuscripta-149725
Observer : Andrea Manna
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
81 9 10 C 26 229
82 1 3 A -22 107
83 1 1 J 31 221
3 11 14