GREGOR Solar Telescope

GREGOR is a solar telescope, equipped with a 1.5 m primary mirror.[1] located at the Teide Observatory on Tenerife in the Canary Islands. It replaces the older Gregory Coudé Telescope and was inaugurated on May 21, 2012.[2][3] First light, using a 1 metre test mirror, was on March 12, 2009 (2009-03-12).[4][5]

GREGOR

Part of	Teide Observatory
Location(s)	Tenerife, Atlantic Ocean
Coordinates	28°18′06″N 16°30′39″W
Organization	Kiepenheuer Institute for Solar Physics Leibniz Institute for Astrophysics Potsdam Max Planck Institute for Solar System Research
Wavelength	350 nm (860 THz)-2.0 μm (150 THz)
First light	12 March 2009
Telescope style	Gregorian telescope optical telescope solar telescope
Diameter	1.5 m (4 ft 11 in)
Angular resolution	0.08 arcsecond
Focal length	55.6 m (182 ft 5 in)
Mounting	altazimuth mount
Enclosure	dome
Website	www.leibniz-kis.de/en/observatories/gregor/
Location of GREGOR Solar Telescope
Related media on Wikimedia Commons

GREGOR is the third-largest solar telescope in the world, after the Big Bear Observatory and the McMath-Pierce solar telescope. It is aimed at observing the solar photosphere and chromosphere at visible and infrared wavelengths. GREGOR sports a high-order adaptive optics (AO) system with a 256-actuator deformable mirrors and a 156-subaperture Shack-Hartmann wavefront sensor. Efforts are underway to implement multi-conjugate AO in 2014.[6]