Dynamic evolution of Ha region of nova Cygni 2001 n°2

From JD=2452142.5 to JD=2452147.5 (21.0/08/2001 to 26.0/08/2001)
Time sampling of 0.25 days.
R=7000 spectrograph - CN-212 telescope (0.2 m aperture).
Intensities normalized to 6670 angstroms. 

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