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One of the most promising techniques for detecting acoustic oscillations in solar-type stars is the measurement of minute radial velocity shifts produced by the oscillations. Photon noise limitations can be alleviated by using an echelle spectrograph to observe Doppler shifts in a large number of spectral lines simultaneously. The new East Arm Echelle Spectrograph on the the Palomar 200-inch Hale telescope is an excellent instrument for measuring radial velocity variations, providing high resolution over a broad wavelength range. The instrument is fiber-fed with a double-scrambler option to enhance stability, and incorporates a molecular absorption cell for instantaneous calibration. In this poster we present preliminary stellar observations, assess instrumental performance, and discuss the potential for asteroseismology measurements.
