BeSSeL Catalogs: Source-Based Lists

This dataset consists of over 100 trigonometric parallax and proper motion measurements for masers associated with high-mass star forming regions. Maser lines of choice include both methanol and water, at frequencies of 12 and 22 GHz, respectively. In addition to the 100+ BeSSeL sources, the catalog also includes maser values taken from the literature. The coordinates, parallaxes, proper motions, velocities, and publication reference are available as a data product on the BeSSeL website <a href="http://bessel.vlbi-astrometry.org/parallax/">here.</a>