The Principal Galaxies Catalogue (PGC) is an astronomical catalog published in 1989 that lists B1950 and J2000 equatorial coordinates and cross-identifications...

The Antennae Galaxies (also known as NGC 4038/NGC 4039 or Caldwell 60/Caldwell 61) are a pair of interacting galaxies in the constellation Corvus. They...

Third Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book.....D. NASA Content Administrator, ed. (31 May 2012). "The Pinwheel Galaxy". NASA. Retrieved...

in either the Morphological Catalogue of Galaxies, the Catalogue of Galaxies and Clusters of Galaxies, or the catalogue of galactic planetary nebulae...

Sculptor Dwarf Irregular Galaxy and the dwarf galaxy UGCA 442 are both companions of the spiral galaxy NGC 7793. These galaxies all lie within the Sculptor...

Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book.....D. Elmegreen, D. M.; Elmegreen, B. G. (1987). "Arm classifications for spiral galaxies". Astrophysical...

clusters to the galaxy's total luminosity is high compared to the Milky Way and similar galaxies with small bulges, but comparable to other galaxies with large...

of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way. The galaxy is the second-smallest spiral galaxy in the Local Group after...

discovered by Henrietta Swan Leavitt. List of galaxies List of Messier objects Messier object New General Catalogue Dreyer, J. L. E. (1988). Sinnott, R. W....

that the galaxies will merge to form a giant elliptical galaxy or possibly large disc galaxy. Such events are frequent among the galaxies in galaxy groups...