spectroscopic observations on 14 june

again a clear night. i could start around 23h local time in evening twilight with capturing a spectrum of alpha Draconis (spectroscopic double starsystem) in h-alpha region in high resolution (R~15000) with LHiRess and C11 setup, exposuretime was 6 x 600 sec (STAROS-project – This database concerns the starĀ alpha Draconis (Thuban, HD123299), a relatively bright spectroscopic binary of type A0III (V=3.68), with an orbital period of 51 days.). After this star, i observed Be-star 10 Cas and exposuretime was 2 x 1200 sec. data for the BeSS database.