在本論文中，我們觀察在WASP-10系統中已知行星WASP-10b的軌道週期變化，來探測此系統是否存在其他行星進而對WASP-10b的繞行軌道產生擾動。我們除了在伊朗觀測過一次此行星的凌日現象，總共蒐集34次凌日現象的光變曲線，並由此計算凌日中點與預期的時間差。在時間差的震盪中，我們發現一週期性的訊號，週期為11天，振幅接近一分鐘，將此周期性訊號與觀測的數據進行擬和，其吻合程度以值表示，為1.69。反之，考慮WASP-10b以固定週期繞行軌道的情形，擬和的值為2.05。此外，我們將Maciejewski及其團隊所找到的週期性訊號與我們的數據進行擬和，結果算出的值為10.07。

We observed one new transit of WAP-10b using a 46 cm telescope located at WISE Observatory in Israel, in order to search for transit timing variations (TTVs) which can be induced by the existing of the additional planets in the system. Employing 34 available light curves within about 3 yr, the transit timings and O-C diagram are obtained. We found a TTVs signal which has a period about 11d and an amplitude near 1 min with $\chi_{red}^{2}$ = 1.69 fitted to the O-C diagram. Comparing with no TTVs case, the WASP-10b rotates periodically with a linear ephemeris which corresponds to a $\chi_{red}^{2}$ value of 2.05. We also consider the TTV signal reported by Maciejewski et al.(2011a) which is inconsistent with our new-fitted data, $\chi_{red}^{2}$ = 10.07.

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