M59-UCD3 is an ultra-compact dwarf galaxy located near the Messier 59 galaxy. As of 2015, it is the second-densest galaxy currently observed, second to M85-HCC1.[1][3]
References
- ^ a b c d e f g h Sandoval, Michael A.; Vo, Richard P.; Romanowsky, Aaron J.; Strader, Jay; Choi, Jieun; Jennings, Zachary G.; Conroy, Charlie; Brodie, Jean P.; Foster, Caroline; Villaume, Alexa; Norris, Mark A.; Janz, Joachim; Forbes, Duncan A. (23 July 2015). “Hiding in Plain Sight: Record-breaking Compact Stellar Systems in the Sloan Digital Sky Survey”. The Astrophysical Journal. 808 (1): L32. arXiv:1506.08828. Bibcode:2015ApJ…808L..32S. doi:10.1088/2041-8205/808/1/L32. S2CID 55254708.
- ^ “SDSS J124211.04+113841.2”. SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-10-31.
- ^ “Undergraduates discover the densest galaxies known”. Space Daily. 29 July 2015.