NGC 6984
| Galaxy NGC 6984 |
|
|---|---|
|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Indus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 57 m 54 s |
| declination | -51 ° 52 ′ 15 ″ |
| Appearance | |
| Morphological type | SB (r) c |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 1.8 ′ × 1.2 ′ |
| Position angle | 101 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.015577 +/- 0.000030 |
| Radial velocity | 4670 +/- 9 km / s |
|
Stroke distance v rad / H 0 |
(207 ± 14) · 10 6 ly (63.4 ± 4.4) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | July 8, 1834 |
| Catalog names | |
| NGC 6984 • PGC 65798 • ESO 235-020 • IRAS 20543-5203 • 2MASX J20575398-5152151 • SGC 205419-5203.8 • LEDA 65798 • LDCE 1431 NED002 | |
NGC 6984 is a bar-spiral galaxy of the Hubble type SBc in the constellation Indians in the southern sky . It is estimated to be 207 million light years away from the Milky Way and has a diameter of around 110,000 ly.
In the same area of the sky is the galaxy NGC 6982 .
The object was discovered on July 8, 1834 by the astronomer John Herschel with a 48 cm telescope.