Table 5: Results for the fit of ATLAS 9 and PHOENIX model atmospheres to our interferometric VLTI/VINCI and NPOI data sets of $\gamma $ Sagittae.
Model atmosphere NPOI (526 nm to 852 nm) VLTI/VINCI (2190 nm)
ATLAS 9, plane-parallel, $T_{\rm eff}=$ 3750 K, $\log g$ = 1.0 $\Theta_{\rm LD}=6.18\pm0.06$ mas $\Theta_{\rm LD}=6.08\pm0.02$ mas
  $\chi^2_\nu=2.2$ $\chi^2_\nu=0.6$
PHOENIX, plane-parallel, $T_{\rm eff}=3750$ K, $\log g=1.0$ $\Theta_{\rm LD}=6.11\pm0.06$ mas $\Theta_{\rm LD}=6.09\pm0.02$ mas
  $\chi^2_\nu=2.3$ $\chi^2_\nu=0.6$
PHOENIX, spherical, $T_{\rm eff}=3750$ K, $\log g=1.0$, $M=1.3~M_\odot$ $\Theta_{\rm LD}=6.30\pm0.06$ mas $\Theta_{\rm LD}=6.34\pm0.02$ mas
  $\chi^2_\nu=2.4$ $\chi^2_\nu=0.6$
  $\Theta_{\rm Ross}=6.02\pm0.06$ mas $\Theta_{\rm Ross}=6.06\pm0.02$ mas
  $\overline{\Theta_{\rm Ross}}=6.06\pm0.02$ mas

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