NGC 4692
| Galaxy NGC 4692 / NGC 4702 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 47 m 55.3 s |
| declination | + 27 ° 13 ′ 20 ″ |
| Appearance | |
| Morphological type | E + |
| Brightness (visual) | 12.7 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.3 ′ × 1.3 ′ |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.026705 +/- 0.000031 |
| Radial velocity | 8006 +/- 9 km / s |
|
Stroke distance v rad / H 0 |
(358 ± 25) x 10 6 ly (109.7 ± 7.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 11, 1785 |
| Catalog names | |
| NGC 4692, 4702 • UGC 7967 • PGC 43200 • CGCG 159-078 • MCG + 05-30-086 • IRAS 12456-0303 • 2MASX J12475528 + 2713209 • GC 3222 • H II 381 • h 1433 • LDCE 926 NED005 | |
NGC 4692 = NGC 4702 is a 12.7 mag bright elliptical galaxy of the Hubble type "E0" in the constellation Haar der Berenike in the northern sky . It is estimated to be 358 million light years away from the Milky Way and has a diameter of around 135,000 ly.
In the same area of the sky are the galaxies NGC 4670 , NGC 4673 , NGC 4721 , NGC 4728 , among others .
The object was discovered twice; first on April 11, 1785 by Wilhelm Herschel with an 18.7-inch reflecting telescope , who described it as "F, S" (listed as NGC 4692); then on March 4, 1867 by Heinrich Louis d'Arrest , who called it "Doubtless a very small, very much compressed cluster" (listed as NGC 4702).