A new relative orbit solution with new dynamical masses is determined for the nearby white dwarf - red dwarf pair 40 Eri BC. The period is 230.09+/-0.68y. It is predicted to close slowly over the next half-century getting as close as 1.32" in early 2066. We determine masses of 0.575+/-0.018 m⊙ for the white dwarf and 0.2041+/-0.0064 m⊙ for the red dwarf companion. The inconsistency of the masses determined by gravitational redshift and dynamical techniques, due to a premature orbit calculation, no longer exists.
@article{arxiv.1707.03635,
title = {Binary Star Orbits. V. The Nearby White Dwarf - Red Dwarf pair 40 Eri BC},
author = {Brian D. Mason and William I. Hartkopf and Korie N. Miles},
journal= {arXiv preprint arXiv:1707.03635},
year = {2017}
}