NGC 4042
| Galaxy NGC 4042 |
|
|---|---|
![NGC 4042 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC4042_-_SDSS_DR14.jpg)
|
|
| NGC 4042 SDSS image | |
| AladinLite | |
| Constellation | Berenike's hair |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 02 m 46.777 s |
| declination | + 20 ° 09 ′ 47.73 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 16.4 mag |
| Brightness (B-band) | 17.4 likes |
| Angular expansion | 0.2 ′ × 0.2 ′ |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.023940 ± 0.000107 |
| Radial velocity | 7177 ± 32 km / s |
|
Stroke distance v rad / H 0 |
(319 ± 23) x 10 6 ly (97.8 ± 6.9) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | March 18, 1865 |
| Catalog names | |
| NGC 4042 • 2MASX J12024674 + 2009478 • 2MASS J12024677 + 2009479 • NSA 118248 • WISEA J120246.74 + 200947.8 | |
NGC 4042 is a compact dwarf galaxy of the Hubble type C in the constellation Coma Berenices in the northern sky . It is estimated to be 319 million light years from the Milky Way and about 20,000 light years across.
In the same area of the sky are the galaxies NGC 4055 , NGC 4056 , NGC 4057 , NGC 4060 .
The object was discovered on March 18, 1865 by the astronomer Albert Marth .