Everything about The Anglo-australian Telescope totally explained
The
Anglo-Australian Telescope (AAT) is a 3.9
m equatorially mounted telescope operated by the
Anglo-Australian Observatory and situated at the
Siding Spring Observatory,
Australia at an altitude of a little over 1100 m. It is jointly funded by the
United Kingdom and
Australia, with observing time made available to astronomers worldwide. It is equipped with a number of instruments, including the Two Degree Field facility (
2dF), a robotic
optical fibre positioner for obtaining
spectroscopy of up to 400 objects over a 2°
field of view simultaneously; the
University College London Échelle Spectrograph (UCLES), a high-resolution optical spectrograph which has been used to discover many
extrasolar planets; and IRIS2, a wide-field
infrared camera and spectrograph.
The telescope was commissioned in
1974 with a view to allowing high quality observations of the sky from the southern hemisphere, as in the 1970s most major telescopes were located in the north.
The AAT was one of the last large telescopes built with an equatorial mount. More recent large telescopes have instead adopted the
more compact and mechanically stable
altazimuth mount. The AAT was however one of the very first telescopes to be fully computer-controlled, and set new standards for pointing and tracking accuracy.
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