The Pulsation Mode of the Cepheid Polaris
  A previously-derived photometric parallax of 10.10+-0.20 mas, d=99+-2 pc, is
confirmed for Polaris by a spectroscopic parallax derived using line ratios in
high dispersion spectra for the Cepheid. The resulting estimates for the mean
luminosity of <Mv>=-3.07+-0.01 s.e., average effective temperature of
<Teff>=6025+-1 K s.e., and intrinsic color of (<B>-<V>)o=0.56+-0.01 s.e., which
match values obtained previously from the photometric parallax for a space
reddening of E(B-V)=0.02+-0.01, are consistent with fundamental mode pulsation
for Polaris and a first crossing of the instability strip, as also argued by
its rapid rate of period increase. The systematically smaller Hipparcos
parallax for Polaris appears discrepant by comparison.
