NGC 4725是一个位于后发座，距离大约4,000万光年的中间棒状螺旋星系。NGC 4725也是一个西佛星系，这表明它有一个超大质量黑洞的活跃星系核。
相关条目[编辑]
外部链接[编辑]
参考资料[编辑]
- ^ R. W. Sinnott, editor. The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. 1988. ISBN 0-933-34651-4.
- ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 NASA/IPAC Extragalactic Database. Results for NGC 4725. [2006-11-25]. （原始内容存档于2011-05-14）.
- ^ Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; Liu, Michael C.; Rieke, Marcia J.; Ajhar, Edward A.; Blakeslee, John P. Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations. Astrophysical Journal. February 2003, 583 (2): 712–726 [2011-01-29]. doi:10.1086/345430. （原始内容存档于2008-03-10）.
- ^ NASA/IPAC Extragalactic Database. Results for NGC 4725. [2010-04-21]. （原始内容存档于2020-01-04）.
