world's largest alien hunting telescope

China completes world's largest alien hunting telescope 

The Five hundred meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Heavenly Eye" or "The Eye of Heaven"), is a radio telescope located in the Dawodaing depression (大窝凼洼地), a natural basin in Pingtang County, Guizhou Province, southwest China . It consists of a fixed 500 m (1,600 ft) dish constructed in a natural depression in the landscape. It is the world's largest filled-aperture radio telescope and the second-largest single-dish aperture after the sparsely-filled RATAN-600 in Russia.

It has a novel design, using an active surface for pointing and focusing, rather than only correcting residual errors and suspending the receiver on a computer-controlled winch system without any rigid connection to the primary.

world's largest alien hunting telescope

Construction on the FAST project began in 2011 and it achieved first light in September 2016. It is currently undergoing testing and commissioning.

In-short: 

Location(s)       -Pingtang County, Guizhou Province, China

Coordinates      -25°39′10.5″N 106°51′23.7″E Coordinates: 25°39′10.5″N 106°51′23.7″E

Wavelength      -10 cm to 4.3 m:11[3]

Built                -2011–2016

First light         -25 September 2016

Telescope style  -Deformable fixed primary

Diameter           - 500 m (physical)

Collecting area   -70000 m2

Focal length           -140 m (f/0.466):12

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