NGC 4163
| Galaxy NGC 4163 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Hunting dogs |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 12 m 09.1 s |
| declination | + 36 ° 10 ′ 09 ″ |
| Appearance | |
| Morphological type | IAm BCD |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 1.9 ′ × 1.6 ′ |
| Position angle | 0 ° |
| Surface brightness | 14.5 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 291 |
| Redshift | 0.000550 +/- 0.000017 |
| Radial velocity | 165 +/- 5 km / s |
|
Stroke distance v rad / H 0 |
(8 ± 1) x 10 6 ly (2.52 ± 0.19) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | April 28, 1785 |
| Catalog names | |
| NGC 4163 • NGC 4167 • UGC 7199 • PGC 38881 • CGCG 187-020 • MCG + 06-27-026 • KUG 1209 + 364 • GC 2766/2767 • H III 399 • h 1118 • | |
NGC 4163 = NGC 4167 is an irregular galaxy of Hubble type in the constellation Canes Venatici , the 8 million light-years from an estimated Milky Way is removed.
The galaxy was discovered in 1785 by the astronomer William Herschel using his 18.7 inch mirror telescope. On March 11, 1831, the galaxy was rediscovered by John Herschel and listed in the NGC catalog as NGC 4167 .