SIMBAD references

We report 212 radial velocity measures of Polaris obtained during 1994-1997 and use these to rediscuss Polaris's changing pulsational amplitude and rate of period change during the 20th century. In the course of this work we discovered a serious error in an earlier paper, which led to our finding too steep a decline in amplitude in recent decades. We correct this error and no longer predict a cessation of pulsation in the 1990s. In fact, the new, more precise radial velocities suggest that the decrease in amplitude has abruptly stopped and that the peak-to-peak amplitude is holding steady at about 1.6 km.s^–1, or 0.03 mag in V. The period, however, continues to change.