Sunspot drawing of 1997-5-17

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https://doi.org/10.7891/e-manuscripta-149678



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1997-05-17
08:00
Hs 1304.6:4997
https://doi.org/10.7891/e-manuscripta-149678
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
28 1 2 A 21 138
30 1 2 A 5 15
31 3 2 B 27 6
3 5 6