Procyon B
= Procyon B
{c}
A <white dwarf> companion in the nearby Procyon binary system. A measured <bolometric luminosity> $L$ and <effective temperature> $T$ give its <stellar radius> through $R=\sqrt{L/(4\pi\sigma T^4)}$.<Hubble Space Telescope Astrometry of the Procyon System>[Abstract identifies Procyon B as a DQZ white dwarf]{ref}