Baştürk, Ö.Esmer, E. M.Torun, Ş.Yalçınkaya, S.El Helweh, FadelKaramanlı, ErtuğrulÖncü, M.Albayrak, H. Ö.Akram, Fathima A. M.Kahraman, Mustafa G.Sufi, ShaadÜzümcü, M.Davoudi, F.2020-02-112020-02-112019http://hdl.handle.net/11693/53290Date of Conference: 4-8 September 2019Conference Name: Turkish Physical Society 35th International Physics Congress, TPS 2019Transiting planets provide a unique opportunity to search for unseen additional bodies gravitationally bound to a system. It is possible to detect the motion of the center-of-mass of the observed transiting planet-host star duo due to the gravitational tugs of the unseen bodies from the Roemer delay. In order to achieve the goal, determination of the mid-times of the transits of the planets in high precision and accuracy and correct them for the orbital motion of the Earth is a primary condition. We present transit timing variations and update the ephemeris information of 5 transiting planets; HAT-P-23b, WASP1-103b, GJ-1214b, WASP-69b, and KELT-3b within this contribution, based on all the quality transit light curves from amateur and professional observers, converted to Dynamic Barycentric Julian Days (BJD-TDB).EnglishEphemeridesTransiting planetsHAT-P-23bWASP1-103bGJ-1214bWASP-69bKELT-3bConference Paper10.1063/1.5135417