| NGC 6789 | |
|---|---|
 Hubble Space Telescope image of NGC 6789 | |
| Observation data (J2000 epoch) | |
| Constellation | Draco |
| Right ascension | 19 16 41 |
| Declination | +63° 58′ 23″ |
| Redshift | −0.000470 |
| Heliocentric radial velocity | −141 ± 9 km/s |
| Distance | 12 Mly (3.6 Mpc) |
| Apparent magnitude (B) | 13.76 |
| Characteristics | |
| Type | Im |
| Other designations | |
| NGC 6789,MCG+11-23-001, LEDA 63000 | |
NGC 6789 is a void irregular galaxy in the constellation Draco. It was discovered by Lewis Swift on Aug 30, 1883. It is located within the Local Void, a region of space with far fewer galaxies than its surroundings.
NGC 6789 is the nearest blue compact dwarf (BCD) galaxy to the Milky Way. It is chemically homogeneous and relatively metal-poor.
See also
References
- ^ "NGC 6789". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 19 June 2019.
- ^ "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 19 June 2019.
- ^ García-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. S2CID 119163529.
- ^ Lelli, 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. Retrieved 19 June 2019.
External links
Media related to NGC 6789 at Wikimedia Commons- NGC 6789 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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