NGC 3384

NGC 3384

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]
Type E7[2]
Apparent dimensions (V) 5′.5 × 2′.5[2]
Apparent magnitude (V) 10.9[2]
Other designations
NGC 3371,[2] UGC 5911,[2] PGC 32292[2]

NGC 3384 is an elliptical galaxy in the constellation Leo. The galaxy was discovered by Herschel 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]

Galaxy group information

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.[5][6][7][8]

External links

  • NGC 3384, position and other data
  • NGC 3384 SIMBAD entry
  • Pdf document: Stellar population analysis applied to NGC 3384
  • SDSS image, NGC 3384
  • NGC 3384 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images


  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.  
  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.  
  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.  
  5. ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press.  
  6. ^ 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.  
  7. ^ A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement 100: 47–90.  
  8. ^ 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.