NGC 3384

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NGC 3384
NGC 3384
NGC 3384 in upper left (2MASS near-infrared)
Observation data (J2000 epoch)
Constellation Leo[1]
Right ascension 10h 48m 16.9s[2]
Declination +12° 37′ 46″[2]
Redshift 704 ± 2 km/s[2]
Distance 35.1 ± 2.3 Mly (10.8 ± 0.7 Mpc)[3]
Apparent magnitude (V) 10.9[2]
Type E7[2]
Apparent size (V) 5′.5 × 2′.5[2]
Other designations
NGC 3371,[2] UGC 5911,[2] PGC 32292[2]
See also: Galaxy, List of galaxies

NGC 3384 is an elliptical galaxy in the constellation Leo. The galaxy was discovered by Herschel[which?] in 1784. The high age of the stars in the central region of NGC 3384 was confirmed after analysis of their color. More than 80% were found to be Population II stars which are over a billion years old.[4] The supermassive black hole at the core has a mass of 1.6+0.1
×107 M

Galaxy group information[edit]

NGC 3384 is a member of the M96 Group, a group of galaxies in the constellation Leo that is sometimes referred to as the Leo I Group.[4] This group also includes the Messier objects M95, M96, and M105. All of these objects are conspicuously close to each other in the sky.[6][7][8][9]

External links[edit]


  1. ^ R. W. Sinnott, ed. (1988). 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. ISBN 0-933346-51-4.
  2. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 3384. Retrieved 2006-10-12.
  3. ^ Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430.
  4. ^ a b Attia, Abdel-Fattah; Ismail, H. A.; Selim, I. M.; Osman, A. M.; et al. (August 2005). "Stellar Population Analysis of Galaxies based on Genetic Algorithms". Chinese Journal of Astronomy and Astrophysics. 5 (4): 347–355. Bibcode:2005ChJAA...5..347A. doi:10.1088/1009-9271/5/4/002.
  5. ^ Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013.
  6. ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 0-521-35299-1.
  7. ^ P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement. 93: 211–233. Bibcode:1992A&AS...93..211F.
  8. ^ A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement. 100: 47–90. Bibcode:1993A&AS..100...47G.
  9. ^ G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070.

Coordinates: Sky map 10h 48m 16.9s, +12° 37′ 46″