NGC 4459
| NGC4459 | |
|---|---|
 The centraldust laneof NGC 4459 as imaged by theHubble Space Telescope | |
| Observation data (J2000epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h29m00.0s[1] |
| Declination | 13° 58′ 42″[1] |
| Redshift | 0.003976/1192 km/s[1] |
| Distance | 52,500,000ly |
| Grouporcluster | Virgo Cluster |
| Apparent magnitude(V) | 11.32[1] |
| Characteristics | |
| Type | SA0^+(r),LINER[1] |
| Size | ~ 54,770 ly |
| Apparent size(V) | 3.5 x 2.7[1] |
| Other designations | |
| CGCG 70-116, IRAS 12264+1415, MCG 2-32-83,PGC41104,UGC7614, VCC 1154[1] | |
NGC 4459is alenticular galaxylocated about 50 millionlight-yearsaway[2]in theconstellationofComa Berenices.[3]NGC 4459 is also classified as aLINERgalaxy.[2]NGC 4459 was discovered by astronomerWilliam Herschelon January 14, 1787.[4]NGC 4459 is a member of theVirgo Cluster.[5]
Physical characteristics
[edit]Dust disk
[edit]NGC 4459 has a central flocculent dust disk that surrounds an inner ring.[6][7]Also, there appears to be evidence of ongoing star formation in the disk.[7]
Super massive black hole
[edit]NGC 4459 has asupermassive black holewith an estimated mass of roughly 70 million suns (7×107M☉). Its diameter is estimated to be around 2.87astronomical units[8](266.4 million mi).[9]
See also
[edit]References
[edit]- ^abcdefg"NASA/IPAC Extragalactic Database".Results for NGC 4459.Retrieved2017-08-20.
- ^ab"Your NED Search Results".ned.ipac.caltech.edu.Retrieved2017-08-22.
- ^Rojas, Sebastián García."Galaxy NGC 4459 - Galaxy in Coma Berenices Constellation · Deep Sky Objects Browser".DSO Browser.Archived fromthe originalon 2017-08-22.Retrieved2017-08-22.
- ^"New General Catalog Objects: NGC 4450 - 4499".cseligman.com.Retrieved2017-08-18.
- ^"Detailed Object Classifications".ned.ipac.caltech.edu.Retrieved2017-08-22.
- ^Young, Lisa M.; Bureau, Martin; Cappellari, Michele (23 December 2007). "Structure and Kinematics of Molecular Disks in Fast‐Rotator Early‐Type Galaxies".The Astrophysical Journal.676:317–334.arXiv:0712.4189.doi:10.1086/529019.S2CID119215566.
- ^abYoung, Lisa M.; Bendo, George J.; Lucero, Danielle M. (13 January 2009). "Mid- to Far-Infrared Emission and Star Formation in Early-Type Galaxies".The Astronomical Journal.137(2): 3053–3070.arXiv:0811.1381.Bibcode:2009AJ....137.3053Y.doi:10.1088/0004-6256/137/2/3053.S2CID1996780.
- ^"List of black hole candidates".www.johnstonsarchive.net.Retrieved2017-08-20.
- ^"2.8662 Astronomical unit - Wolfram|Alpha Results".m.wolframalpha.com.Retrieved2017-10-21.
External links
[edit]
Wikimedia Commons has media related toNGC 4459.
- NGC 4459 onWikiSky:DSS2,SDSS,GALEX,IRAS,Hydrogen α,X-Ray,Astrophoto,Sky Map,Articles and images
