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Catalog family

Galaxy Catalogues

The great reference catalogues of galaxies — the Uppsala General Catalogue's size-selected northern galaxies and the Principal Galaxies Catalogue that underpins the HyperLEDA database, providing standard identifiers for galaxies far beyond those with common names.

Highlights

  • UGC and PGC — standard identifiers for galaxies

Across the catalogue layer

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • IAUInternational Astronomical Union

    Official naming, definitions, constellation boundaries, and astronomical nomenclature.