NGC 3384
| NGC 3384 | |
|---|---|
 | |
| 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] |
| Characteristics | |
| Type | E7[2] |
| Apparent size (V) | 5′.5 × 2′.5[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[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
−0.2×107 M☉.[5]
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.[6][7][8][9]
External links
- NGC 3384, position and other data
- NGC 3384 SIMBAD entry
- Pdf document: Stellar population analysis applied to NGC 3384
- Wikisky.org: SDSS image, NGC 3384
- NGC 3384 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
References
- ^ 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.
- ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 3384. Retrieved 2006-10-12.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 0-521-35299-1.
- ^ 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.
- ^ 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.
- ^ 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.