TÜBİTAK National Observatory (, TUG) is a ground-based astronomical observatory operated by the TUG Institute of the

Scientific and Technological Research Council of Turkey The Scientific and Technological Research Institution of Turkey (, TÜBİTAK) is a national agency of Turkey whose stated goal is to develop "science, technology and innovation" (STI) policies, support and conduct research and development, and to ...

(TUBITAK). Established in 1991, it is located at an altitude of in Bakırtepe, around west-southwest of

Antalya Antalya is the fifth-most populous city in Turkey and the capital of Antalya Province. Recognized as the "capital of tourism" in Turkey and a pivotal part of the Turkish Riviera, Antalya sits on Anatolia's southwest coast, flanked by the Tau ...

in southern

Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...

. There are five telescopes installed in Bakırtepe: * RTT150 - Russian-Turkish 1.5-m Telescope (formerly AZT-22) (2001) * T100 (ACE RC1.0) - 1.0 m

Ritchey–Chrétien telescope A Ritchey–Chrétien telescope (RCT or simply RC) is a specialized variant of the Cassegrain telescope that has a hyperboloid, hyperbolic primary mirror and a hyperbolic secondary mirror designed to eliminate off-axis optical errors (Coma (optic ...

(2009) * T60 (OMI RC06) - 0.6 m Ritchey–Chrétien telescope (2008) * YT40 ( Meade LX200GPS) - 0.4 m

Schmidt–Cassegrain telescope The Schmidt–Cassegrain is a catadioptric telescope that combines a Cassegrain reflector's optical path with a Schmidt corrector plate to make a compact astronomical instrument that uses simple spherical surfaces. Invention and design The ...

(2006) * ROTSEIIID Robotic Optical Transient Search Experiment

Discoveries

Scientists led by a Turkish astronomer from

Ankara University Ankara University () is a public university, public research university in Ankara, the capital of Turkey. It was the first higher education institution founded in Turkey after the History of the Republic of Turkey, formation of the Turkish republ ...

discovered an

exoplanet An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first det ...

orbiting the giant star

HD 208897 HD may refer to: Business * H-D or Harley-Davidson, a motorcycle manufacturer * The Home Depot, NYSE stock symbol: HD Chemistry * Hydrogen deuteride, a diatomic compound of hydrogen and deuterium * Mustard gas Codes * Air Do, formerly Ho ...

, which is located at a distance of some 210

light year A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distance, astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by t ...

s from the Earth. The exoplanet has a minimum mass of 1.4

Jupiter mass The Jupiter mass, also called Jovian mass, is the unit of mass equal to the total mass of the planet Jupiter. This value may refer to the mass of the planet alone, or the mass of the entire Jovian system to include the moons of Jupiter. Jupiter ...

es, and rotates its parent star from about 1.05 AU () away in every 353 days on a nearly circular orbit. The discovery is the result of a ten-year-long research work of precise radial-velocity method carried out by using the Coude Echelle Spectrograph (CES) installed on the 1.5-meter Russian-Turkish Telescope (RTT150). Follow-up observations at the

Okayama Astrophysical Observatory The (NAOJ) is an astronomy, astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile. It was established in 1988 as an amalgamation of three existing research organizations - the To ...

(OAO) in Japan and the Ankara University Kreiken Observatory (AUKR) confirmed the discovery, which was made public on August 6, 2017.

References

Astronomical observatories in Turkey National Observatory Buildings and structures in Antalya Province 1991 establishments in Turkey Robotic telescopes {{observatory-stub