|Right ascension||00h 19m 32.10s|
|Declination||+35° 02′ 37.1″|
|Half-light radius (physical)||1700 pc|
|Notable features||Satellite of Andromeda Galaxy|
|And XIX, LEDA 5056919|
Andromeda XIX is a satellite galaxy of the Andromeda Galaxy (M31), a member of the Local Group, like the Milky Way Galaxy. Andromeda XIX is considered "the most extended dwarf galaxy known in the Local Group", and has been shown to have a half-light radius of 1.7 kiloparsec (kpc). It was discovered by the Canada–France–Hawaii Telescope, and is thought to be a dwarf galaxy.
Surveillance performed during use of the MegaPrime/MegaCam 1 deg2 (camera) on the Canada-France-Hawaii Telescope (CFHT) had mapped the Andromeda Galaxy's stellar halo (one quarter) up to ~150 kpc. The survey, which had confirmed the clumpiness of Andromeda's stellar halo, had shown the existence of multiple other dwarf galaxies. They include: Andromeda XI, XII, XIII, XV, XVI, XVIII, XIX, and XX.
- "Results for ANDROMEDA XIX". NASA/IPAC Extragalactic Database. Retrieved January 15, 2017.
- "Chart (Local Galaxies)". University of Northern Iowa. Retrieved 18 April 2012.
- McConnachie, Alan W.; Huxor, Avon; Martin, Nicolas F.; Irwin, Mike J.; Chapman, Scott C.; Fahlman, Gregory; Ferguson, Annette M. N.; Ibata, Rodrigo A.; et al. (1 December 2008). "A Trio of New Local Group Galaxies with Extreme Properties". The Astrophysical Journal. 688 (2): 1009–1020. arXiv: . Bibcode:2008ApJ...688.1009M. doi:10.1086/591313. Retrieved 18 April 2012.
- Martin, Nicolas F.; McConnachie, Alan W.; Irwin, Mike; Widrow, Lawrence M.; Ferguson, Annette M. N.; Ibata, Rodrigo A.; Dubinski, John; Babul, Arif; et al. (1 November 2009). "PAndAS' CUBS: DISCOVERY OF TWO NEW DWARF GALAXIES IN THE SURROUNDINGS OF THE ANDROMEDA AND TRIANGULUM GALAXIES". The Astrophysical Journal. 705 (1): 758–765. arXiv: . Bibcode:2009ApJ...705..758M. doi:10.1088/0004-637X/705/1/758. Retrieved 18 April 2012.