Sunspot drawing of 2004-8-21

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https://doi.org/10.7891/e-manuscripta-152690



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2004-08-21
07:30
Hs 1304.6:7228
https://doi.org/10.7891/e-manuscripta-152690
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
140 6 11 G 6.6 347.6
142 11 14 D 13.0 329.2
143 8 10 D 9.5 264.6
144 17 16 D -10.9 290.3
4 42 51