GREGOR Solar Telescope

Summary

GREGOR is a solar telescope, equipped with a 1.5 m primary mirror,[1] located at 2,390 m altitude 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 ofTeide Observatory Edit this on Wikidata
Location(s)Tenerife, Atlantic Ocean, international waters
Coordinates28°18′06″N 16°30′39″W / 28.301797°N 16.510724°W / 28.301797; -16.510724 Edit this at Wikidata
OrganizationLeibniz Institute for Astrophysics Potsdam
Leibniz Institute for Solar Physics
Max Planck Institute for Solar System Research Edit this on Wikidata
Wavelength350 nm (860 THz)–2,000 nm (150 THz)
First light12 March 2009 Edit this on Wikidata
Telescope styleGregorian telescope
solar telescope Edit this on Wikidata
Diameter1.5 m (4 ft 11 in) Edit this at Wikidata
Angular resolution0.08 arcsecond Edit this on Wikidata
Focal length55.6 m (182 ft 5 in) Edit this at Wikidata
Enclosuredome Edit this on Wikidata
Websitewww.leibniz-kis.de/en/observatories/gregor/ Edit this at Wikidata
GREGOR Solar Telescope is located in Canary Islands
GREGOR Solar Telescope
Location of GREGOR Solar Telescope
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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][needs update]

2014-2020 edit

2020 upgrade edit

Initial astigmatism was fixed during an upgrade with some corrective optics: two off-axis parabolic mirrors.[7]

See also edit

References edit

  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.
  7. ^ Europe's largest Solar Telescope GREGOR unveils magnetic details of the Sun Sept 2020

Sources edit