RR Lyrae 20120624 Maxima

 Average seeing, and a strong wind did not allowed a good snr on this new time serie taken during a maxima rising phase Data at least.

Note line doubling of NaD and strong h alpha and h beta emission during rising phase.

http://www.astrosurf.com/garrel/web_RRLyrae_Hb_20120624/RRlyrare_Hb_300serie.html