Planetary companions to the metal-rich stars BD-10°3166 and HD 52265

Precise Doppler measurements from the Keck/HIRES spectrometer reveal periodic Keplerian velocity variations in the stars BD -10 degrees 3166 and HD 52265. BD -10 degrees 3166 (K0 V) has a period of 3.487 days and a semiamplitude of 61 m s(-1). An orbital fit yields a companion mass M sin i = 0.48 M-JUP, a semi-major axis of a = 0.046 AU, and an eccentricity of e = 0.05 (consistent with zero). HD 52265 (G0 V) has a period of 119.0 days, a semiamplitude of 45 m s(-1), an eccentricity of 0.29, a semimajor axis of a = 0.49 AU, and companion mass M sin i = 1.13 M-JUP. Both of these stars are metal-rich and chromospherically inactive. The mean metallicity of the 33 stars that have detected planets is significantly greater than that of typical stars in the solar neighborhood. We present a catalog of the 35 extrasolar planets known to date, with updated orbits and M sin i values. Photometry of BD -10 degrees 3166 was obtained with an automated telescope to search for transits. No transits were found, indicating that the inclination of the orbit i is less than and sin i is less than 84 degrees .3 0.995. The photometry also reveals no photometric variability larger than 0.0008 +/- 0.0009 mag at the orbital period of the planet. This confirms that neither starspots nor pulsations are the cause of the radial velocity variations in BD -10 degrees 3166.