Sunspot drawing of 2001-7-31

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https://doi.org/10.7891/e-manuscripta-151597



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2001-07-31
09:00
Hs 1304.6:6279
https://doi.org/10.7891/e-manuscripta-151597
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
303 3 4 J -17 295
307 8 10 D -12 251
308 11 12 C -20 285
309 5 9 D 6 242
4 27 35