View source for Astronomy:Heinrich Hertz Submillimeter Telescope

{{Short description|Radio telescope in Graham County, Arizona}}
{{Infobox Telescope}}
The '''Submillimeter Telescope''' ('''SMT'''), formerly known as the '''Heinrich Hertz Submillimeter Telescope''', is a [[Astronomy:Submillimetre astronomy|submillimeter wavelength]] [[Astronomy:Radio telescope|radio telescope]] located on Mount Graham, Arizona, US. It is a 10-meter-wide parabolic dish inside a building to protect it from bad weather. The building front doors and roof are opened when the telescope is in use.  The telescope's construction was finished in 1993.  Along with the [[Astronomy:ARO 12m Radio Telescope|12 Meter Telescope]] on Kitt Peak, this telescope is maintained by the Arizona Radio Observatory, a division of [[Astronomy:Steward Observatory|Steward Observatory]] at the [[Organization:University of Arizona|University of Arizona]].

The dryness of the air around and above Mount Graham is important for [[Physics:Extremely high frequency|extremely high frequency]] (EHF) radio and far-[[Physics:Infrared|infrared]] observations – a region of the [[Physics:Electromagnetic spectrum|spectrum]] where the electromagnetic waves are strongly [[Physics:Attenuation|attenuated]] by any [[Physics:Water vapor|water vapor]] or clouds in the air.

This telescope is used nine to ten months of the year, and it is stowed only when there is too much water vapor in the atmosphere, primarily during the summertime.  This telescope is one of the telescopes that make up [[Astronomy:Mount Graham International Observatory|Mount Graham International Observatory]].

==See also==
* [[Astronomy:Mount Graham International Observatory|Mount Graham International Observatory]]
* [[Astronomy:James Clerk Maxwell Telescope|James Clerk Maxwell Telescope]] submillimeter telescope at [[Astronomy:Mauna Kea Observatory|Mauna Kea Observatory]]
* List of observatories
* [[Astronomy:Lists of telescopes|Lists of telescopes]]

==References==
{{reflist}}

==External links==
* [http://aro.as.arizona.edu/index.htm Official website at the Arizona Radio Observatory]
* [http://www.discoverypark.com/obstour.html Discovery Park] – Guided MGIO tours for the public

{{radio-astronomy}}

[[Category:Astronomical observatories in Arizona]]
[[Category:Radio telescopes]]
[[Category:Submillimetre telescopes]]

{{Sourceattribution|Heinrich Hertz Submillimeter Telescope}}