Context. Modern polarimeters enable precise measurements of exoplanetary systems, providing valuable constraints on orbital geometry and atmospheric scattering properties.

Aims. We aim to investigate the orbital parameters of the non-transiting Jupiter-like exoplanet υ And b, which orbits close to its host star, using polarized scattered light observed with the DiPol-2 polarimeter on a 60 cm telescope.

Methods. Over nearly three years, we collected high-precision polarimetric data of the υ And system. Using Lomb-Scargle periodograms, we identified variability close to the planetary orbital phase and modeled the signal with the Rayleigh-Lambert approximation.

Results. A weak polarimetric signal at half the orbital period of υ And b was detected. The V -band MCMC fits yielded an orbital inclination of i = 28+88−18◦, an argument of periastron ω = 102+139−45◦, a longitude of ascending node Ω = 107+134−43◦, and a geometric albedo of p = 19+9−8%. Although uncertainties remain large, the inclination result agrees with earlier estimates, supporting a low-inclination, non-transiting geometry.

Conclusions. While the detection is not definitive, these results demonstrate the capability of high-precision polarimetry to probe the orbital parameters of non-transiting exoplanets. Further observations with larger telescopes and improved sensitivity will be required to refine the constraints on the orbital parameters.