NGC 6789
| NGC6789 | |
|---|---|
 Hubble Space Telescopeimage of NGC 6789 | |
| Observation data (J2000epoch) | |
| Constellation | Draco |
| Right ascension | 19h16m41s[1] |
| Declination | +63° 58′ 23″[1] |
| Redshift | −0.000470[2] |
| Heliocentric radial velocity | −141 ± 9km/s[2] |
| Distance | 12Mly(3.6Mpc)[3] |
| Apparent magnitude(B) | 13.76[1] |
| Characteristics | |
| Type | Im[2] |
| Other designations | |
| NGC6789,MCG+11-23-001,LEDA63000[1] | |
NGC 6789is avoid[4]irregular galaxyin the constellationDraco.It was discovered byLewis Swifton Aug 30, 1883.[5]It is located within theLocal Void,a region of space with far fewer galaxies than its surroundings.[4]
NGC 6789 is the nearestblue compact dwarf(BCD) galaxy to the Milky Way. It is chemically homogeneous and relativelymetal-poor.[3]
See also
[edit]References
[edit]- ^abcd"NGC 6789".SIMBAD.Centre de données astronomiques de Strasbourg.Retrieved19 June2019.
- ^abc"NASA/IPAC Extragalactic Database".ned.ipac.caltech.edu.Retrieved19 June2019.
- ^abGarcía-Benito, R.; Pérez-Montero, E. (2012)."Auto-consistent metallicity and star formation history of the nearest blue compact dwarf galaxy NGC 6789".Monthly Notices of the Royal Astronomical Society.423(1): 406–421.arXiv:1203.2186.Bibcode:2012MNRAS.423..406G.doi:10.1111/j.1365-2966.2012.20885.x.S2CID119163529.
- ^abLelli, Federico; Verheijen, Marc; Fraternali, Filippo (2014)."The triggering of starbursts in low-mass galaxies".Monthly Notices of the Royal Astronomical Society.445(2): 1694–1712.arXiv:1409.1239.Bibcode:2014MNRAS.445.1694L.doi:10.1093/mnras/stu1804.
- ^Seligman, Courtney."New General Catalog Objects: NGC 6750 - 6799".New General Catalog Objects: NGC 6750 - 6799.Retrieved19 June2019.
External links
[edit]
Media related toNGC 6789at Wikimedia Commons- NGC 6789 onWikiSky:DSS2,SDSS,GALEX,IRAS,Hydrogen α,X-Ray,Astrophoto,Sky Map,Articles and images
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