NGC 4142
| Galaxy NGC 4142 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 09 m 30.2 s |
| declination | + 53 ° 06 ′ 18 ″ |
| Appearance | |
| Morphological type | SB (s) d: |
| Brightness (visual) | 13.3 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 2.2 ′ × 1.2 ′ |
| Position angle | 175 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 258 |
| Redshift | 0.003859 +/- 0.000023 |
| Radial velocity | 1157 +/- 7 km / s |
|
Stroke distance v rad / H 0 |
(55 ± 4) · 10 6 ly (16.9 ± 1.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 26, 1789 |
| Catalog names | |
| NGC 4142 • UGC 7140 • PGC 38645 • CGCG 269-037 • MCG + 09-20-102 • GC 2747 • H III 814 • h 1103 • | |
NGC 4142 is a bar-spiral galaxy of the Hubble type SBcd in the constellation Great Bear in the northern sky . It is estimated to be 55 million light years from the Milky Way .
The object was discovered on April 26, 1789 by the British astronomer Wilhelm Herschel .
Web links
Commons : NGC 4142 - collection of images, videos, and audio files
