NGC 6887
| Galaxy NGC 6887 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | telescope |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 17 m 17.3 s |
| declination | -52 ° 47 ′ 48 ″ |
| Appearance | |
| Morphological type | SAB (rs) bc |
| Brightness (visual) | 12.0 mag |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 3.20 x 1.3 |
| Position angle | 102 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.009030 ± 0.000021 |
| Radial velocity | 2707 ± 6 km / s |
|
Stroke distance v rad / H 0 |
(119 ± 8) · 10 6 ly (36.5 ± 2.6) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | July 24, 1835 |
| Catalog names | |
| NGC 6887 • PGC 64427 • ESO 186-027 • IRAS 20135-5257 • 2MASX J20171727-5247484 • SGC 201330-5257.1 • HIPASS J2017-52 | |
NGC 6887 is a bar-spiral galaxy of the Hubble-type SBbc in the constellation Pendulum Clock in the southern sky . It is estimated to be 119 million light years from the Milky Way and about 115,000 light years in diameter.
In the same area of the sky are u. a. the galaxies IC 4983 , IC 4984 , IC 4987 , IC 4995 .
The object was discovered by John Herschel on July 24, 1835 .