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NGC 4394


NGC 4394
哈伯太空望远镜拍摄NGC 4394[1]
观测资料(J2000 历元
赤经12h 25m 55.624s[2]
赤纬+18° 12′ 50.13″[2]
红移0.003075[3]
径向速度922±4 km/s[4]
距离39.5±2.9 Mly (12.1±0.9 Mpc)[4]
属于室女座星系团
视星等 (V)10.9[4]
视星等 (B)11.9[2]
绝对星等 (V)-20.49[4]
特征
类型SBb / (R)SB(r)b[4]
大小41.2×38.8 kly (12.7×11.3 kpc)[4]
角直径 (V)3.6′×3.2′[4][3]
其他名称
NGC 4394, UGC 7523, PGC 40614, MCG+03-32-035[3]
参见:星系星系列表

NGC 4394是SBb型棒旋星系,在天球上位于后发座,距离地球约3950万光年(1210万秒差距)[4]。NGC 4394由威廉·赫歇尔发现于1784年3月14日[3]。NGC 4394的核心区域是典型的低电离星系核[1]。并且NGC 4394是透镜状星系M85的假定伴星系,两者在天球上相距8角分[3]。NGC 4394也是室女座星系团的成员星系[5][6]

参考资料

[编辑]
  1. ^ 1.0 1.1 Hubble spies NGC 4394. [4 May 2016]. (原始内容存档于2019-02-28). 
  2. ^ 2.0 2.1 2.2 Search Results for NGC 4394. [4 May 2016]. (原始内容存档于2016-03-17). 
  3. ^ 3.0 3.1 3.2 3.3 3.4 The NGC/IC Project for object NGC 4394. [5 May 2016]. (原始内容存档于2012-05-20). 
  4. ^ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 NASA/IPAC Extragalactic Database (NED) results for object NGC 4394. [5 May 2016]. (原始内容存档于2019-02-27). 
  5. ^ Detailed Object Classifications. ned.ipac.caltech.edu. [2017-08-25]. (原始内容存档于2019-07-28). 
  6. ^ The Virgo Cluster. www.atlasoftheuniverse.com. [2017-08-25]. (原始内容存档于2016-03-09). 
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NGC 4394
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