NGC 4692
Galaxy NGC 4692 / NGC 4702 |
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SDSS | |
AladinLite | |
Constellation | Berenike's hair |
Position equinox : J2000.0 , epoch : J2000.0 |
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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).