A Compendium of Distances to Molecular Clouds in the Star Formation
  Handbook
  Accurate distances to local molecular clouds are critical for understanding
the star and planet formation process, yet distance measurements are often
obtained inhomogeneously on a cloud-by-cloud basis. We have recently developed
a method which combines stellar photometric data with Gaia DR2 parallax
measurements in a Bayesian framework to infer the distances of nearby dust
clouds to a typical accuracy of $\sim5\%$. After refining the technique to
target lower latitudes and incorporating deep optical data from DECam in the
southern Galactic plane, we have derived a catalog of distances to molecular
clouds in Reipurth (2008, Star Formation Handbook, vols I and II) which
contains a large fraction of the molecular material in the solar neighborhood.
Comparison with distances derived from maser parallax measurements towards the
same clouds shows our method produces consistent distances with $\lesssim10\%$
scatter for clouds across our entire distance spectrum (150 pc $-$ 2.5 kpc). We
hope this catalog of homogeneous distances will serve as a baseline for future
work.
