Fig. 1.
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A pre-discovery series of one OND and seven DAO spectra in the neighbourhood of the He I 4471.508 and Mg II 4481.228 Å from September 2003. From top to bottom the RJDs of the spectra are 52909.9993, 52910.0102, ...10.4959 (OND), ...10.6240, ...10.9934, 52911.6137, ...11.7928, and ...11.9786. A smooth change in the position of the two narrow Mg II lines in time is clearly seen.
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