Abstract We present high-resolution optical echell spectroscopy of HIP 544 and HIP 46843, two nearby solar like stars. The discovery of these young stars at such a close distance to the Sun is really a surprising phenomenon. It will help us to have a better understanding of the structure and evolutionary history of the Milky Way. The radial velocities (RV) of HIP 544 and HIP 46843 are measured to be –6.88± 0.13 km s-1 and 8.30± 0.16 km s-1 , respectively, which are more accurate than before. The equivalent widths (EW) of the Li I 6707.8 Å absorption line of HIP 544 and HIP 46843 are measured to be 110± 5mÅ and 195± 5mÅ respectively. Based on these properties, HIP 544 is estimated to be 100–800Myr old and HIP 46843 30–100Myr old using three relatively creditable methods.

Keywords stars: late-type — stars: individual (HIP544, HIP46843) — stars: activity — techniques: radial velocities— techniques: spectroscopic

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