Find information, examples, FAQs and extensive descriptions of the data, curated by the survey teams.
GALAHThe Galactic Archaeology with HERMES survey is collecting stellar parameters and abundances for one million stars in the Milky Way. GALAH yields a comprehensive view of the formation & evolution of the Galaxy.
Total Data Releases
GALAH makes use of the High Efficiency and Resolution Multi-Element Spectrograph (HERMES) at the Anglo-Australian Telescope. This unique instrument employs the Two Degree Field (2dF) fibre positioner on the Anglo-Australian Telescope to provide multiobject (n~392), high-resolution (R~28000) spectra optimized for elemental abundance studies for up to 30 elements in four optical windows. The HERMES instrument was built specifically for the GALAH survey.
These pages provide information on the survey and its data products, in particular, our current data release:
Information about our previous data release is also available:
Detailed information DR3 can be found on these pages:
Update: On 9 May 2018 we released the GALAH survey DR2.1. This contains a fix to three columns related to radial velocities, populates the gaia_dr2_id column, and adds a collection of high-SNR median spectra. See the changelog for more details.
There are a number of important documents that describe this release:
Questions about DR2? Email email@example.com
Questions about DR1? Email firstname.lastname@example.org