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The ARO 12m Radio Telescope (ARO12m or KP12m) is a 12-meter dish located on Kitt Peak, approximately 60 mi (97 km) from Tucson in Arizona at an elevation of 6,215.8 ft (1,894.6 m).
The original dish was built in 1967 under the umbrella of the National Radio Astronomy Observatory (NRAO). At that time, it was 36 feet (11 meters) in diameter and was known as the 36-foot Telescope. In 1984, it was renovated with a new backup structure and a slightly larger dish. At this point its name was changed to the 12 Meter Telescope.
In 2013, the entire antenna (dish and mounting) was replaced with ESO's ALMA prototype antenna, which had been located in New Mexico. The new antenna is the same size (12 meters) but has a much better surface accuracy (thereby permitting use at shorter wavelengths), and a more precise mount with better pointing accuracy.
Observatory Informationedit
This table displays some of the characteristics of the telescope and the site.[1]
Site
East Longitude
-111°
36'
53.475"
North Latitude
+31°
57'
12.000"
Elevation
1914 m (6280 ft)
Telescope
Primary Reflector Diameter
12.0 m
Focal Ratio (f/D)
Prime = 0.4, Cassegrain = 8.0
Surface Accuracy
better than 60 µm rms
Mount
Elevation over Azimuth
Slew Rate
6.0°/minute
Pointing Accuracy
2" rms
Elevation Limit
3°
Enclosure
Tracking astrodome with movable door
Science at the 12m Radio Telescopeedit
In the almost 40 years since it was first built, the 12m Radio Telescope has been at the forefront of millimeter molecular astronomy: studying molecules in space through the use of molecular spectroscopy at millimeter wavelengths. Many of the molecules that have been discovered in the interstellar medium were discovered by the 12m.[citation needed]
radio, telescope, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, please, help, improve, this, article, introducing, citations, additional, sources, find, sources, news, newspapers, books, scholar, jstor, july. This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources ARO 12m Radio Telescope news newspapers books scholar JSTOR July 2021 The ARO 12m Radio Telescope ARO12m or KP12m is a 12 meter dish located on Kitt Peak approximately 60 mi 97 km from Tucson in Arizona at an elevation of 6 215 8 ft 1 894 6 m ARO 12m Radio TelescopeAlternative namesARO12mPart ofKitt Peak National Observatory Location s ArizonaCoordinates31 57 12 N 111 36 54 W 31 9533 N 111 615 W 31 9533 111 615Altitude1 914 m 6 280 ft Telescope styleradio telescope Diameter12 m 39 ft 4 in Websitearo wbr as wbr arizona wbr edu wbr 12m wbr docs wbr 12 wbr meter wbr description wbr htmLocation of ARO 12m Radio Telescope Related media on Commons edit on Wikidata Contents 1 History 2 Observatory Information 3 Science at the 12m Radio Telescope 4 See also 5 References 6 External linksHistory editThe original dish was built in 1967 under the umbrella of the National Radio Astronomy Observatory NRAO At that time it was 36 feet 11 meters in diameter and was known as the 36 foot Telescope In 1984 it was renovated with a new backup structure and a slightly larger dish At this point its name was changed to the 12 Meter Telescope In 2000 the NRAO passed control of the telescope to the University of Arizona The University of Arizona had been operating the Submillimeter Telescope SMT located on Mount Graham since 1992 When it took over operations of the 12m it created the Arizona Radio Observatory ARO a part of Steward Observatory of the UArizona College of Science which now runs both telescopes In 2013 the entire antenna dish and mounting was replaced with ESO s ALMA prototype antenna which had been located in New Mexico The new antenna is the same size 12 meters but has a much better surface accuracy thereby permitting use at shorter wavelengths and a more precise mount with better pointing accuracy Observatory Information editThis table displays some of the characteristics of the telescope and the site 1 SiteEast Longitude 111 36 53 475 North Latitude 31 57 12 000 Elevation 1914 m 6280 ft TelescopePrimary Reflector Diameter 12 0 mFocal Ratio f D Prime 0 4 Cassegrain 8 0Surface Accuracy better than 60 µm rmsMount Elevation over AzimuthSlew Rate 6 0 minutePointing Accuracy 2 rmsElevation Limit 3 Enclosure Tracking astrodome with movable doorScience at the 12m Radio Telescope editIn the almost 40 years since it was first built the 12m Radio Telescope has been at the forefront of millimeter molecular astronomy studying molecules in space through the use of molecular spectroscopy at millimeter wavelengths Many of the molecules that have been discovered in the interstellar medium were discovered by the 12m citation needed See also editList of astronomical observatories Lists of telescopesReferences edit Technical informationExternal links edit nbsp Media related to ARO 12m Radio Telescope at Wikimedia Commons ARO s Wiki Page Official Web Site of the ARO Portals nbsp Arizona nbsp Astronomy nbsp Stars nbsp Spaceflight nbsp Outer space nbsp Solar System nbsp Education nbsp Science Retrieved from https en wikipedia org w index php title ARO 12m Radio Telescope amp oldid 1133591428, wikipedia, wiki, book, books, library,
