Anglo-Australian Observatory (AAO)

Anglo-Australian Observatory
Anglo-Australian Observatory

The Anglo-Australian Observatory is an observatory that operates the Anglo-Australian Telescope and 1.2-meter (48-inch) United Kingdom Schmidt Telescope on Siding Spring Mountain (at an altitude of 1,150 meters), near Coonabarabran, New South Wales, Australia. Nearby, on the same site, are (or were before a fire in 2003) instruments of the Mount Stromlo and Siding Spring Observatories.


The headquarters and laboratory of the AAO are on the same campus as the Australia Telescope National Facility in the Sydney suburb of Epping.


Current observing programs

Taipan – A planned survey to measure the Hubble constant to a precision of 1%, measure the bulk flow of galaxies in the nearby Universe in order to better understand cosmology, and to probe some of the lowest mass galaxies in the nearby Universe to understand galaxy formation and evolution.


OzDES – A survey to measure the redshifts of tens of thousands of galaxies and obtain spectra of supernovae and other transients. The galaxy redshifts will be used to make the most detailed measurement of the Universe's expansion history, leading to a better understanding of the physics behind the acceleration of the Universe.


GALAH – A spectroscopic survey of 1 million galactic stars to measure elemental abundances and measure stellar kinematics to understand the formation history of our Milky Way galaxy.


SAMI – A spatially-resolved spectroscopic survey of ~3000 galaxies, the largest ever to date, to explore the kinematics and internal astrophysical processes of galaxies to understand galaxy formation.


Anglo-Australian Planet Search – The Southern Hemisphere's most precise planet search program.