NGC 6684
| Galaxy NGC 6684 |
|
|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | peacock |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 48 m 57.9 s |
| declination | -65 ° 10 ′ 24 ″ |
| Appearance | |
| Morphological type | (L) SB (r) 0 ^ + |
| Brightness (visual) | 10.3 mag |
| Brightness (B-band) | 11.3 mag |
| Angular expansion | 4.6 ′ × 2.9 ′ |
| Position angle | 35 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.002945 ± 0.000006 |
| Radial velocity | 883 ± 2 km / s |
|
Stroke distance v rad / H 0 |
(35 ± 3) x 10 6 ly (10.7 ± 0.8) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | June 8, 1836 |
| Catalog names | |
| NGC 6684 • PGC 62453 • ESO 104-G016 • 2MASX J18485789-6510244 • GC 4431 • h 3757 • AM 1843-651 • LDCE 1321 NED002 | |
NGC 6684 is a lenticular galaxy in the constellation Peacock . It is estimated to be 35 million light years from the Milky Way .
The galaxy was discovered on June 8, 1836 by the astronomer John Herschel with his 18.7-inch telescope and later included in his New General Catalog by Johan Dreyer .