NGC 4423
| Galaxy NGC 4423 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 27 m 09.0 s |
| declination | + 05 ° 52 ′ 49 ″ |
| Appearance | |
| Morphological type | Sdm: / HII |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 2.3 ′ × 0.4 ′ |
| Position angle | 18 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | Virgo cluster |
| Redshift | 0.003727 ± 0.000020 |
| Radial velocity | 1117 ± 6 km / s |
|
Stroke distance v rad / H 0 |
(47 ± 3) x 10 6 ly (14.3 ± 1.0) Mpc |
| diameter | 35,000 ly |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 13, 1784 |
| Catalog names | |
| NGC 4423 • UGC 7556 • PGC 40801 • CGCG 042-107 • MCG + 01-32-65 • IRAS 12246 + 0609 • 2MASX J12270897 + 0552488 • VCC 971 • GC 2982 • H II 145 • h 1266 • LEDA 40801 | |
NGC 4423 is a spiral galaxy with extensive star formation regions of the Hubble type Sd in the constellation Virgo on the ecliptic . It is an estimated 47 million light years away from the Milky Way , has a diameter of about 35,000 light years, and is listed as a member of the Virgo Galaxy Cluster under catalog number VCC 971 .
The galaxies NGC 4430 , NGC 4432 , NGC 4453 and NGC 4376 are located in the same area of the sky .
The object was discovered by Wilhelm Herschel on April 13, 1784 .
Web links
- SIMBAD Astronomical Database
- NGC 4423. In: Wikisky. Retrieved January 13, 2010 .