New issue 746: Radius units incorrect in Rockstar frontend https://bitbucket.org/yt_analysis/yt/issue/746/radius-units-incorrect-in-roc... Britton Smith: The radius units are supposed to be defined as kpc/h comoving, but printing them out after loading indicates that yt thinks the native units are cm. In fact, I have found that changing the value of r_unit does not actually seem to change the resulting unit system.