The Unified Cluster Catalogue

The Unified Cluster Catalogue (UCC) These are the latest version of the UCC database, stored in the UCC_cat.csv.gz file, and the associated members estimated for each of the listed clusters, stored in the UCC_members.parquet.gz file. The columns listed in UCC_cat are: ID : Name(s) associated to the OC RA_ICRS : Median RA from the databases this OC is present DE_ICRS : Median DEC from the databases this OC is present plx : Median parallax from the databases this OC is present pmRA : Median RA proper motion from the databases this OC is present pmDE : Median DEC proper motion from the databases this OC is present UCC_ID : Internal UCC naming N_50 : Number of estimated members with P>0.5 r_50 : Radius that contains half the members (in arcmin) RA_ICRS_m : Median RA estimated using the selected members DE_ICRS_m : Median DEC estimated using the selected members plx_m : Median parallax estimated using the selected members pmRA_m : Median RA proper motion estimated using the selected members pmDE_m : Median DEC proper motion estimated using the selected members Rv_m : Median radial velocity estimated using the selected members N_Rv : Number of members with Rv data C1 : C_phot quality class C2 : C_dens quality class C3 : C_phot,C_dens, combined quality class