Europe
60cm Ritchey Chrétien for the Hampshire Astronomical Group (United Kingdom)
The Hampshire Astronomical Group got a 600mm F/8 Ritchey Chrétien Telescope on APM German Equatorial GE 300 Goto Mount from APM Telescopes.
Hampshire Astronomical Group
8 × 8" Robotic Astrographs, University of Barcelona (Spain)
This powerful astrophotographic instrument actually consists of an array of eight 8" f/3 Astrographs from OS. The mount is a modified direct drive mount GE-300 from APM with torque Motor’s and Renishaw Absolute Encoders. The first telescope will be located in Tenerife and operated by the university of Barcelona (financed by the Qatar foundation). Two more telescopes identical in construction will be installed in New Mexico (USA) and Urumqi (China).
Dome/Telescope Blueprints
60cm Ritchey Chrétien, Cologne (Germany)
The public observatory in Cologne has a new telescope! APM Telescopes delivered and installed a 24" Ritchey Crétien with optical set from LOMO on an impressively swung pier. The tube was manufactured by APM's business partner Matthias Wirth and perfectly stable mechanics is assured by the use of APM's heavy-weight mounting GE-300 together with a Little Foot Goto controller.
Volkssternwarte Köln
Telescope Blueprints
50cm Ritchey Chrétien on DDM160, Polish Academy of Sciences (Poland)
Three telescopes were ordered by the Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences. Each of the Ritchy Chrétien Systems has 500mm aperture - two with f/15 and one with f/8 focal ratio. The telescopes were installed abroad in South Africa, Australia and Argentina. Another telescope was set to africa before.
90cm Ritchey Chrétien, Uppsala (Sweden)
This telescope has been delivered to the Angström Lab in Uppsala (Sweden). Right now it is the second largest telescope in Sweden. This telescope is an improved Version of the prototype Pollux telescope and is Alt-Azimutal mounted and uses field derotators. A tertiary Nasmyth mirror can be used to switch (computer controlled with a servomotor) between 2 focus positions on the right side or on the left side of the mount.
http://www.astro.uu.se/grundutb/wt/
90cm Ritchey Chrétien, Falera (Switzerland)
This Alt-Azimutal telescope has been installed in May, 2007 and is already running prefectly.
80cm Ritchey Chrétien, University of Vienna (Austria)
This telescope has been installed in December 2002 in Vienna, Austria. It is in the northern dome of the University-Observatory and is one of the largest telescopes in Austria. The telescope is used for student work and some research programs, though it is limited through the bad sky conditions in the center of a large city.
http://astro.univie.ac.at/g-vlt/#c91145
80cm Ritchey Chrétien of the Max Valier Observatory, Bozen (Italy)
End of May 2002 we have installed this 80cm telescope in Italy at a town in the alpes. The observatory is at an altitude of 1350m with a very nice view on the mountains and is a very dark observing site. The seeing was also very nice during our tests. Under quite good seeing conditions we could measure the blind tracking performance (without autoguider) and reached a unparalleled 0.25arc seconds in 10 Minutes. The telescope can make calibration runs on some internal reference marks and can be used remotely.
http://www.astrooptik.com/Projekte/MaxValier.htm
80cm Ritchey Chrétien, Ethno Cosmology Museum (Lithuania)
in the Year 2008 APM Telescopes installed the largest Teleskope in Lithuania, a 800mm Ritchey Chretien, equatorial Fork Mounted in the Ethno Cosmology Museum near Vilnius for public observations and Students teaching.
Moletai Astronomical Observatory
Project Info Telescope Blueprints Reference Letter
1.2m Cassegrain, Trebur (Germany)
This telescope is in use now since more than 7 years and a lot of very accurate measurements on asteroids have been performed with this instrument, although the observing site near Frankfurt, a major German city, is quite light polluted.
Michael Adrian Observatorium