NGC 6789
Irregular galaxy in the constellation Draco
From Wikipedia, the free encyclopedia
NGC 6789 is a void[4] irregular galaxy in the constellation Draco. It was discovered by Lewis Swift on August 30, 1883.[5] It is located within the Local Void, a region of space with far fewer galaxies than its surroundings.[4]
| NGC 6789 | |
|---|---|
Hubble Space Telescope image of NGC 6789 | |
| Observation data (J2000 epoch) | |
| Constellation | Draco |
| Right ascension | 19h 16m 41s[1] |
| Declination | +63° 58′ 23″[1] |
| Redshift | −0.000470[2] |
| Heliocentric radial velocity | −141 ± 9 km/s[2] |
| Distance | 12 Mly (3.6 Mpc)[3] |
| Apparent magnitude (B) | 13.76[1] |
| Characteristics | |
| Type | Im[2] |
| Other designations | |
| NGC 6789,MCG+11-23-001, LEDA 63000[1] | |
NGC 6789 is the nearest blue compact dwarf (BCD) galaxy to the Milky Way. It is chemically homogeneous and relatively metal-poor.[3]
NGC 6789 has attracted attention because it shows recent central star formation despite its extreme isolation.[6]
