The Morphological Catalogue of Galaxies (MCG)[1] or Morfologiceskij Katalog Galaktik, is a Russian catalogue of 30,642 galaxies compiled by Boris Vorontsov-Velyaminov and V. P. Arkhipova. It is based on scrutiny of prints of the Palomar Sky Survey plates, and putatively complete to a photographic magnitude of 15. Including galaxies to magnitude 16 would have resulted in an unmanageably large dataset.
The catalogue was published in five parts (chapters) between 1962 and 1974,[2] the final chapter including a certain number of galaxies with a photographic magnitude above 15.[3]