Abstract
ABSTRACTNew photometric (uvbyβ) observations of V1162 Orionis are reported. We derive a reddening value of E(b - y) = 0.021 mag and a metallicity of[Fe/H] = +0.1. Intrinsic (b - y) and c1 values indicate a mean effective temperature,〈Teff〉 = 7540 K, and a mean surface gravity,〈log g〉 = 3.96. Theoretical evolutionary tracks, along with pulsation models, indicate the mass of V1162 Ori is 1.8 M⊙ and the age is 0.60 Gyr. New V magnitude CCD observations are also reported. A time of maximum light analysis shows that V1162 Ori has experienced a period break. In addition, the amplitude has dropped from ΔV = 0.2 before the period break to ΔV = 0.1 after the break.
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