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Context. Binary Cepheids play an important role in investigating thecalibration of the classical Cepheid period-luminosity relationship. Thereforea thorough study of individual Cepheids belonging to binary systems isnecessary. Aims. Our aim is to determine the orbit of the binary system V1344Aql using newly observed and earlier published spectroscopic and photometricdata. Methods. We collected new radial velocity observations using mediumresolution (${R \approx 11000}$ and ${R \lessapprox 20000}$) spectrographs andwe updated the pulsation period of the Cepheid based on available photometricobservations using $O-C$ diagram. Separating the pulsational and orbital radialvelocity variations for each observational season (year), we determined theorbital solution for the system using $\chi^2$ minimisation. Results. Theupdated pulsation period of the Cepheid estimated for the epoch of HJD2458955.83 is 7.476826 days. We determined orbital elements for the first timein the literature. The orbital period of the system is about 34.6 years, withan eccentricity e = 0.22.

Orbit determination for the binary Cepheid V1344 Aql