NGC 6454
| Galaxy NGC 6454 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Dragon |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 44 m 56.6 s |
| declination | + 55 ° 42 ′ 17 ″ |
| Appearance | |
| Morphological type | S? AGN? |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.0 ′ × 0.8 ′ |
| Position angle | 171 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.030421 +/- 0.000167 |
| Radial velocity | 9120 +/- 50 km / s |
|
Stroke distance v rad / H 0 |
(417 ± 29) x 10 6 ly (127.7 ± 9.0) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | April 19, 1885 |
| Catalog names | |
| NGC 6454 • PGC 60795 • CGCG 278-024 • MCG + 09-29-026 • 2MASX J17445666 + 5542166 • | |
NGC 6454 is a 13.7 mag bright galaxy with an active nucleus of the Hubble type S? in the constellation Dragon in the northern sky , which is an estimated 417 million light years from the Milky Way .
The object was discovered by Lewis A. Swift on April 19, 1885 .
Web links
- NGC 6454. SIMBAD, accessed August 2, 2016 .
- NGC 6454. DSO Browser, accessed August 2, 2016 .
- Auke Slotegraaf: NGC 6454. Deep Sky Observer's Companion, accessed on August 2, 2016 .