NGC 4042
Galaxy NGC 4042 |
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NGC 4042 SDSS image | |
AladinLite | |
Constellation | Berenike's hair |
Position equinox : J2000.0 , epoch : J2000.0 |
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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 .