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Fig. 1
One complete Ondřejov red spectrum of V2368 Oph, taken on HJD 2454357.2917, which shows that the only stronger lines, suitable for the RV measurements, are Hα and the SiII 6347 and 6371 Å. The spectrum contains many water vapour and oxygen telluric lines and the interstellar line at 6613.56 Å.
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