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NGC 3981

天球赤道座標星圖 11h 56m 07.445s, -19° 53′ 46.24″
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NGC 3981
观测资料(J2000[2] 曆元
星座巨爵座
赤经11h 56m 07.4s[3]
赤纬-19° 53′ 46″[3]
紅移0.005747[3]
徑向速度1723 km/s[3]
距离62 Mly(19 Mpc[2]
属于NGC 4038星系群英语NGC 4038 Group
视星等 (B)11.75[2]
特征
类型SA(rs)bc[3]
大小~105,100 ly(32.22 kpc[3] (estimated)
角直徑 (V)5.2 x 2.3[3]
其他名称
UGCA 255, PGC 037496, Arp 289, MCG-03-31-001, ESO 572- G 020, VV 008[3]
參見:星系星系列表

NGC 3981是一個距離地球約6200萬光年的螺旋星系[4],在天球上位於巨爵座[5]。NGC 3981由威廉·赫歇爾發現於1785年2月7日[6]

NGC 3981是NGC 4038星系群英语NGC 4038 Group的成員星系[7][8][9][10],也是室女超星系团的一部份[8][11]

參考資料

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  1. ^ A Galactic Gem. www.eso.org. [12 September 2018]. (原始内容存档于2018-09-12). 
  2. ^ 2.0 2.1 2.2 SIMBAD Astronomical Database - CDS (Strasbourg). Results for NGC 3981. [2018-09-12]. (原始内容存档于2018-09-13). 
  3. ^ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 NASA/IPAC Extragalactic Database. Results for NGC 3981. [2018-09-14]. (原始内容存档于2011-05-14). 
  4. ^ Your NED Search Results. ned.ipac.caltech.edu. [2018-09-15]. (原始内容存档于2018-09-15). 
  5. ^ information@eso.org. A Galactic Gem - ESO’s FORS2 instrument captures stunning details of spiral galaxy NGC 3981. www.eso.org. [2018-09-15]. (原始内容存档于2018-09-12) (美国英语). 
  6. ^ New General Catalog Objects: NGC 3950 - 3999. cseligman.com. [2018-09-15]. (原始内容存档于2018-09-13) (美国英语). 
  7. ^ R. B. Tully. Nearby Galaxies Catalog. Cambridge: Cambridge University Press. 1988. ISBN 0-521-35299-1. 
  8. ^ 8.0 8.1 P., Fouque,; E., Gourgoulhon,; P., Chamaraux,; G., Paturel,. Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members. Astronomy and Astrophysics Supplement Series. May 1992, 93 [2020-09-26]. ISSN 0365-0138. (原始内容存档于2019-12-13) (英语). 
  9. ^ M., Garcia, A. General study of group membership. II - Determination of nearby groups. Astronomy and Astrophysics Supplement Series. July 1993, 100 [2020-09-26]. ISSN 0365-0138. (原始内容存档于2019-12-13) (英语). 
  10. ^ Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando. Nearby Optical Galaxies: Selection of the Sample and Identification of Groups. The Astrophysical Journal. 2000, 543 (1): 178. ISSN 0004-637X. doi:10.1086/317070 (英语). 
  11. ^ Tully, R. B. The Local Supercluster. The Astrophysical Journal. June 1982, 257: 389–422 [2018-09-24]. ISSN 0004-637X. doi:10.1086/159999. (原始内容存档于2018-09-30) (英语). 

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