Astrophysics (index)

Principal Galaxies Catalog

(modern catalog of more than 70k galaxies)

The Principal Galaxies Catalog (PGC) is a 1989 catalog of seventy thousand galaxies. Each cataloged galaxy has a PGC identifier/number, e.g., PGC 2557 for Andromeda (M31).

The PGC is essentially an enhancement to the 1983 Lyon-Meudon Extragalactic Database (LEDA) produced at Lyon Observatory. The two use the same numbering, so LEDA 42102 is equivalent to PGC 42102.

LEDALEDA 42102Principal Galaxies Catalogprecursor to PGC
PGCPGC 2557Principal Galaxies Catalog 

Referenced by:
Astronomical Catalog