GREGOR Solar Telescope

GREGOR Solar Telescope
Organisation KIS, AIP, MPS, Institut für Astrophysik Göttingen[1]
Location(s) Teide Observatory, Tenerife, Canary Islands, Spain
Coordinates 28°18′06″N 16°30′39″W / 28.3018°N 16.5107°W / 28.3018; -16.5107Coordinates: 28°18′06″N 16°30′39″W / 28.3018°N 16.5107°W / 28.3018; -16.5107
Wavelength 350 nm to 2.0 µm[2]
First light March 12, 2009 (2009-03-12)[3][4]
Telescope style Gregorian
Diameter 1.5meter
Angular resolution 0.08″ at 500 nm[2]
Focal length 55.6m (f/38)[2]
Mounting Alt-az[2]
Enclosure Open, retractable dome[4]
Website gregor.kis.uni-freiburg.de

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)[5] 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.[1][6]

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.[2]

See also

References

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

Sources


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