GREGOR Solar Telescope

GREGOR Solar Telescope
Observatory Teide Observatory
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Location(s) Tenerife, Spain
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Coordinates 28°18′06″N 16°30′39″W / 28.301797°N 16.510724°W / 28.301797; -16.510724Coordinates: 28°18′06″N 16°30′39″W / 28.301797°N 16.510724°W / 28.301797; -16.510724
Organization Kiepenheuer Institute for Solar Physics
Leibniz Institute for Astrophysics Potsdam
Max Planck Institute for Solar System Research
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Wavelength 350 nm (860 THz)-2.0 µm (150 THz)
First light 12 March 2009
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Telescope style Gregorian telescope
optical telescope
solar telescope
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Diameter 1.5 m (4 ft 11 in)
Angular resolution 0.08 second of arc
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Focal length 55.6 m (182 ft)
Mounting altazimuth mount
Enclosure dome
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Website gregor.kis.uni-freiburg.de
Location of GREGOR Solar Telescope

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)[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 was on March 12, 2009.[4][5]

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]

See also

References

  1. ↑ "Präziser Blick in die Sonne dank temperaturstabiler Glaskeramik". 2012-05-30. Retrieved 2016-04-14.
  2. ↑ "GREGOR Telescope". KIS website. Kiepenheuer-Institut für Sonnenphysik. Retrieved 11 January 2014.
  3. ↑ "GREGOR". IAC website. Instituto de Astrofísica de Canarias. Retrieved 11 January 2014.
  4. ↑ First light was obtained with a 1-meter test-mirror due to manufacturing issues with the main mirror
  5. ↑ "GREGOR telescope: Zooming in on the sun". phys.org website. phys.org. May 10, 2012. Retrieved 11 January 2014.
  6. ↑ "GREGOR Optical Design". KIS website. Kiepenheuer-Institut für Sonnenphysik. Retrieved 11 January 2014.

Sources


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