A General Catalog of HI Observations of Galaxies. The Reference Catalog.

This reference catalogue compiles observations of external galaxies, including more than 18 700 entries for more than 9 500 galaxies based on nearly 900 reference sources. It offers the HI data as originally published with no numerical conversions or corrections. Catalog entries include the object name, most accurate known equatorial coordinates, morphological type, inclination, HI mass, error, radial velocity, and nine more values.