Abstract:
The periodogram analysis of the V observations of the δ Scuti star HR 1225 has been carried out. Two frequencies of 6.415 cd (P₀ = 0ᵈ.1558) and 8.418 cd (P₁ = 0ᵈ.1188) have been determined. The period ratio of P₁/P₀ = 0.762 indicates radial pulsation. The absolute magnitude, effective temperature and mass of the star are derived to be 1ᵐ.05, 7600 K and 1.9 M☉, respectively.