Erdem, A.Ozturk, O.2025-01-272025-01-272018978-0-7354-1768-70094-243Xhttps://doi.org/10.1063/1.5078885https://hdl.handle.net/20.500.12428/2794334th International Physics Congress (IPS) of the Turkish-Physical-Society (TPS) -- SEP 05-09, 2018 -- Konacik, TURKEYWe present new photometric follow-up observations of transiting exoplanets HAT-P-25 b and WASP-11b / HAT-P-10b obtained at TUBI. TAK National Observatory, Turkey. The new transit light curves of both systems were analyzed using WinFitter code. Planetary radii of HAT-P25b and WASP-11b/HAT-P-10b were found to be 1.18 +/- 0.11RJ and 1.02 +/- 0.09RJ, respectively. Transit ephemerides were updated and transit timing variation (TTV) analyses were performed using all mid-transit times published in the literature together with ours.eninfo:eu-repo/semantics/closedAccessConference Object204210.1063/1.5078885N/AWOS:0004683589000132-s2.0-85057171920Q4