Siding Spring 2.3 m Telescope
The 2.3 metre telescope at Siding Spring Observatory is operated by the Australian National University. The Advanced Technology Telescope was constructed during the early 1980s and featured at-the-time radical features: an unusually thin mirror, an alt-az mount and co-rotating dome.[1] The optical telescope has Altazimuth mount and a primary mirror with a focal length of f/2.05.[1] It is housed in a box-shaped building which rotates as the telescope tracks objects.
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| Alternative names | Advanced Technology Telescope  |
|---|---|
| Part of | Siding Spring Observatory |
| Location(s) | New South Wales, AUS |
| Coordinates | 31°16′18″S 149°03′44″E |
| Organization | Australian National University |
| Altitude | 1,165 m |
| Telescope style | optical telescope |
| Diameter | 2.3 m |
| Secondary diameter | 0.3 m |
| Focal length | f/2.05 |
| Mounting | Altazimuth mount |
| Enclosure | Co-rotating |
  Location of Advanced Technology Telescope | |
 | |
Instrumentation includes an integral field spectrograph known as WiFeS, an echelle spectrograph, and a Nasmyth imager. The telescope is a workhorse for numerous large programs where it is used to do follow-up observations on objects of interest before more extensive observations are made at larger telescopes. It is also a valuable tool for training students in the astronomical observing techniques.
History
The telescope was the initiative of Don Mathewson. It was inaugurated Prime Minister, Bob Hawke on 16 May 1984.[2] It was regarded as an achievement in high technology for Australia. In 1985, it won an award from the Institution of Engineers.[2]
Mirror
The mirror used in the telescope is much thinner than those typically used in a telescope mirror. Its ratio of diameter to thickness is about 20:1.[2] The light mirror and rotating design allows the telescope to be rapidly moved as observations are made.
References
- "ANU 2.3m Telescope". ANU College of Physical & Mathematical Sciences. The Australian National University. Retrieved 15 April 2013.
- Haynes, Raymond (1996). Explorers of the Southern Sky: A History of Australian Astronomy. Cambridge University Press. pp. 184–185. ISBN 0521365759. Retrieved 15 April 2013.