SPAN now handles air and vacuum wavelength more easily. Two new functions in the Spectra manipulation panel allow to convert the wavelengths from air to vacuum and vice versa. The wrappers to pPXF can ...

It is advised that you backup ALL save files before using the tool; it will eventually do this on it's own but doesn't yet. For more information on how to do this, see the 📦 Backing up your save ...