NGC 6434
| Galaxy NGC 6434 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 36 m 48.8 s |
| declination | + 72 ° 05 ′ 20 ″ |
| Appearance | |
| Morphological type | SBbc / HII |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2.3 ′ × 1.0 ′ |
| Position angle | 100 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.008282 +/- 0.000033 |
| Radial velocity | 2483 +/- 10 km / s |
|
Stroke distance v rad / H 0 |
(120 ± 8) x 10 6 ly (36.7 ± 2.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | June 6, 1788 |
| Catalog names | |
| NGC 6434 • UGC 10934 • PGC 60573 • CGCG 339-053, 340-013 • MCG + 12-17-002 • IRAS 17376 + 7207 • GC 4328 • H III 741 • h 1987 • | |
NGC 6434 is a 12.4 mag bright bar-spiral Seyfert galaxy (type 1) of the Hubble-type SBbc in the constellation Dragon and about 120 million light-years away from the Milky Way.
It was discovered on June 6, 1788 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, stellar, with 300 power lE in parallel".