TÜBİTAK National Observatory

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TÜBİTAK National Observatory (Template:Langx, TUG) is a ground-based astronomical observatory operated by the TUG Institute of the Scientific and Technological Research Council of Turkey (TUBITAK). Established in 1991, it is located at an altitude of Script error: No such module "convert". in Bakırtepe, around Script error: No such module "convert". west-southwest of Antalya in southern Turkey.

There are five telescopes installed in Bakırtepe:

RTT150 - Russian-Turkish 1.5-m Telescope (formerly AZT-22) (2001)^[1]^[2]
T100 (ACE RC1.0) - 1.0 m Ritchey–Chrétien telescope (2009)^[3]
T60 (OMI RC06) - 0.6 m Ritchey–Chrétien telescope (2008)^[4]
YT40 (Meade LX200GPS) - 0.4 m Schmidt–Cassegrain telescope (2006)^[5]^[6]
ROTSEIIID Robotic Optical Transient Search Experiment^[7]

Discoveries

Scientists led by a Turkish astronomer from Ankara University discovered an exoplanet orbiting the giant star HD 208897, which is located at a distance of some 210 light years from the Earth.^[8] The exoplanet has a minimum mass of 1.4 Jupiter masses, and rotates its parent star from about 1.05 AU (Template:Cvt) 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 (OAO) in Japan and the Ankara University Kreiken Observatory (AUKR) confirmed the discovery, which was made public on August 6, 2017.^[9]

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