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M51星系群

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M51星系群
渦狀星系,M51星系群裡最亮的天體
觀測數據(曆元J2000
星座天龍座
赤经13h 24m 0s[1][2]
赤纬46° 13′ 0″[1][2]
最亮的成員渦狀星系[3][1][2]
星系的數量7-17[4][3][1][2]
其它名稱
NGC 5194 Group, LGG 347,[1] NOGG H 712,[2]
NOGG P1 723,[2] NOGG P2 739[2]
參見:星系群星系团星系團列表

M51星系群是一個位在天龍座星系群,其名稱就是由最亮的成員渦狀星系得名(渦狀星系就是M51),另外還有其他成員包括NGC 5195向日葵星系等等。



















成員

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M51星系群的成員
Name 種類[5] 赤經J2000[5] 赤緯J2000[5] 紅位移km/s)[5] 星等[5]
NGC 5195 SB0 pec 13h 29m 59.6s +47° 15′ 58″ 465 ± 10 10.5
NGC 5023 Scd 13h 12m 12.6s +44° 02′ 28″ 407 ± 1 12.9
NGC 5229 SB(s)d 13h 34m 02.8s +47° 54′ 56″ 364 ± 8 14.3
向日葵星系 SA(rs)bc 13h 15m 49.3s +42° 01′ 45″ 504 ± 4 9.3
UGC 8313 SB(s)c 13h 13m 53.9s +42° 12′ 31″ 593 ± 4 14.4
UGC 8331 IAm 13h 15m 30.3s +47° 29′ 56″ 260 ± 5 14.6
渦狀星系 SA(s)bc pec 13h 29m 52.7s +47° 11′ 43″ 463 ± 3 9.0


参考文献

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  1. ^ 1.0 1.1 1.2 1.3 1.4 A. Garcia. General study of group membership. II - Determination of nearby groups. Astronomy and Astrophysics Supplement. 1993, 100: 47–90 [2021-02-07]. (原始内容存档于2019-12-13). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 G. Giuricin, C. Marinoni, L. Ceriani, A. Pisani. Nearby Optical Galaxies: Selection of the Sample and Identification of Groups. Astrophysical Journal. 2000, 543: 178–194 [2008-03-29]. (原始内容存档于2019-01-21). 
  3. ^ 3.0 3.1 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. 1992, 93: 211–233 [2021-02-07]. (原始内容存档于2019-12-13). 
  4. ^ R. B. Tully. Nearby Galaxies Catalog. Cambridge: Cambridge University Press. 1988. ISBN 0-521-35299-1. 
  5. ^ 5.0 5.1 5.2 5.3 5.4 NASA/IPAC Extragalactic Database. Results for various galaxies. [2006-10-19]. (原始内容存档于2018-12-25). 
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