GREGOR Solar Telescope
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| Location(s) |
Teide Observatory  , |
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| Coordinates | 28°18′06″N 16°30′39″W / 28.3018°N 16.5107°WCoordinates: 28°18′06″N 16°30′39″W / 28.3018°N 16.5107°W |
| Organization | KIS, AIP, MPS, Institut für Astrophysik Göttingen |
| Wavelength | 350 nm to 2.0 µm |
| First light | March 12, 2009 |
| Telescope style |
solar telescope, Gregorian telescope
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| Diameter | 1.5 m (4 ft 11 in) |
| Angular resolution | 0.08″ at 500 nm |
| Focal length | 55.6m (f/38) |
| Mounting | Alt-az |
| Enclosure | Open, retractable dome |
| Website | gregor |
 Location of GREGOR Solar Telescope
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The GREGOR solar telescope is a solar telescope (equipped with a 1.5 m primary mirror produced out of the zero-expansion material Zerodur by the company SCHOTT AG) 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.
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.
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