A Multi-Band Catalog of 10978 Star Clusters, Associations and Candidates
  in the Milky Way
  We present a catalog of Galactic star clusters, associations and candidates
with 10978 entries. This multi-band catalog was constructed over 20 years,
starting with visual inspections on the Digital Sky Survey and incremented with
the 2MASS, WISE, VVV, Spitzer and Herschel surveys. Large and small catalogs,
as well as papers on individual objects have been systematically
cross-identified. The catalog provides Galactic and equatorial coordinates,
angular diameters, and chronologically ordered designations, making it simple
to assign discoveries, and verify how often the objects were cataloged by
different authors, search methods and/or surveys. Detection in a single band is
the minimum constraint to validate an entry. About 3200 objects have measured
parameters in the literature. A fundamental contribution of the present study
is to present additional $\approx7700$ objects for first analyses of nature,
photometry, spectroscopy and structure. The present focus is not to compile or
determine fundamental parameters, but to provide a catalog characterizing
uniformly the entries. A major result is that now 4060 embedded clusters are
catologed, a factor of $\approx2$ larger than open clusters. Besides
cross-identifications in different references and wavelength domains, we also
communicate the discovery of 638 star clusters and alike objects. The present
general catalog provides previously studied objects and thousands of additional
entries in a homogeneous way, a timely contribution to {\em Gaia} related
works.
