NGC 6170
| Galaxy NGC 6170 / NGC 6176 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Dragon |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 16 h 27 m 36.5 s |
| declination | + 59 ° 33 ′ 45 ″ |
| Appearance | |
| Morphological type | E-S0 |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 0.7 ′ × 0.6 ′ |
| Position angle | 85 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.030708 ± 0.000090 |
| Radial velocity | (9206 ± 27) km / s |
|
Stroke distance v rad / H 0 |
(419 ± 29) · 10 6 Lj (128.6 ± 9.0) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | July 9, 1886 |
| Catalog names | |
| NGC 6170, 6176 • PGC 58188 • CGCG 298-038 • MCG + 10-23-76 • 2MASX J16273651 + 5933446 • | |
NGC 6170 = NGC 6176 is a 13.8 mag bright elliptical galaxy of the Hubble type E-S0 in the constellation Dragon in the northern sky . It is estimated to be 419 million light years from the Milky Way and about 85,000 light years in diameter.
The object was discovered on July 9, 1886 by Lewis A. Swift . An error in Swift's position specification of the first observation was not recognized by Dreyer despite the identical description "many pB sts south" . The second observation on October 1st of the same year led to the second entry in the catalog.