HERMES is a multi-object spectrograph commissioned at the AAT in 2014 that covers four optical bands simultaneously at a spectral resolution of ~28,000.  The HERMES instrument is driven primary by the ‘Galactic Archaeology’ science project, which aims to reconstruct the history of our Galaxy’s formation from precise multi-element abundances of 1 million stars.

The HERMES spectrograph is fed by 396 fibres from AAT’s existing Two-Degree Field (2dF) optical fibre positioner.