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NGC 4845

NGC 4845
NGC 4845
NGC 4845的明亮核心中
观测资料(J2000 历元
星座室女座
赤经12h 58m 01.2s[1]
赤纬1° 34′ 33″
红移z=0.004110 (1232 km/s)[1]
距离47 Mly
视星等 (V)11.2[2]
特征
类型Sab[2]
角直径 (V)4′.9 × 1′.3[2]
其他名称
UGC 08087, 2MASX J12580124+0134320, NGC 4910[3]
参见:星系星系列表

NGC 4845,或称为NGC 4910,是一个距离地球约4700万光年的螺旋星系,在天球上位于室女座。该星系由威廉·赫歇尔发现于1786年[4]

NGC 4845的中心有个质量为300,000超大质量黑洞。2013年,欧洲太空总署国际伽玛射线天体物理实验室(INTEGRAL)观测到了该黑洞可能正在吞噬周围可能是棕矮星等低质量天体时发射出的X射线闪焰[5][6][7]

参考资料

  1. ^ 1.0 1.1 NCG 4845. NASA/IPAC Extragalactic Database. [2016-03-27]. (原始内容存档于2019-02-17). 
  2. ^ 2.0 2.1 2.2 NCG 4845. Deep Sky Observatory. [2016-03-27]. (原始内容存档于2015-02-24). 
  3. ^ NGC 4910. The NGC/IC Project. [May 13, 2013]. (原始内容存档于2012年5月20日). 
  4. ^ NGC Objects: NGC 4800-4849. Courtney Seligman. [May 13, 2013]. (原始内容存档于2019-02-20). 
  5. ^ Astronomers watch as supermassive black hole ‘wakes up,’ swallows planet whole. National Post. April 4, 2013 [May 13, 2013]. (原始内容存档于2014-12-31). 
  6. ^ Jeff LaSala. Watch a Black Hole Feed on Its Planet-Sized Prey. Geekosystem. April 3, 2013 [May 13, 2013]. (原始内容存档于2014-01-28). 
  7. ^ Supermassive and super-hungry. [4 January 2016]. (原始内容存档于2016-03-15). 

外部链接

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NGC 4845
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