- Vacuum Tower Telescope
"For the vacuum tower telescope at
Sacramento Peak , seeRichard B. Dunn Solar Telescope ".The Vacuum Tower Telescope is an evacuated-opticssolar telescope located at theTeide Observatory onTenerife in theCanary Islands . It is operated by theKiepenheuer Institute of Solar Physics (Kiepenheuer-Institut für Sonnenphysik).It has a 70 cm diameter
primary mirror and afocal length of 46 m. Thanks to anadapative optics system, in operation since spring2000 , [http://www.kis.uni-freiburg.de/AOVortrag_Soltau_0004/] [http://www.kis.uni-freiburg.de/kishomepage_36_e.html] , it is able to resolve details down to 0.2 arc seconds (150 km on thesun 's surface).Sources
* [http://obs.kis.uni-freiburg.de/telescopes.htm German Solar Telescopes]
* [http://www.kis.uni-freiburg.de/kisobservatorien_e.html Observatories operated by the KIS]
* [http://www.kis.uni-freiburg.de/obsvtt/vtt_obs.htm Observing at the VTT]
* [http://antwrp.gsfc.nasa.gov/apod/ap070522.html Astronomy Picture of the Day for 22 May 2007]
* [http://www.otri.iac.es/opticon/view_telescopes.php?telescope=27 Telescope Informantion: Vacuum Tower Telescope]
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