Sunspot drawing of 1993-8-17

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https://doi.org/10.7891/e-manuscripta-147443



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1993-08-17
07:30
Hs 1304.6:3856
https://doi.org/10.7891/e-manuscripta-147443
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
219 7 5 B -1 140
222 1 3 J -10 105
223 1 3 J -9 47
3 9 11