LAMOST
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope ( LAMOST ) (translated as wide-angle multi-object fiber spectroscopy telescope ) the Observatory Xinglong Station is the largest optical telescope in Chinese. Its cost was $ 30 million. It was put into operation in June 2007.
This new type of reflector telescope , optimized for spectroscopy, has an effective main mirror diameter of around 4 m. It has the possibility of spectroscopically measuring up to 4000 objects in its field of view of 5 ° at the same time by guiding their light via optical fibers from the image plane to a spectrometer.
Its optics are based on that of a Schmidt telescope , with the corrector being designed as an almost flat mirror. This alone is pivotable and can thus be aligned to the desired region of the sky, while the rest of the optics are fixed (heliostat principle). The Schmidt corrector consists of 24 hexagonal mirror segments with a diameter of 110 cm each and is equipped with active optics . The spherical main mirror is also made up of 37 hexagonal segments of equal size.
Web links
- Homepage of LAMOST (engl.)
- Building LAMOST (Engl.)
- Structure of LAMOST ( Memento from March 4, 2016 in the Internet Archive ) (English; PDF file; 1.78 MB)
Coordinates: 40 ° 23 ′ 44.4 " N , 117 ° 34 ′ 33" E