NGC 4703
| Galaxy NGC 4703 |
|
|---|---|
|
|
| SDSS | |
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 49 m 18.9 s |
| declination | -09 ° 06 ′ 30 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 3.0 ′ × 0.6 ′ |
| Position angle | 156 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.014874 ± 0.000037 |
| Radial velocity | 4459 ± 11 km / s |
|
Stroke distance v rad / H 0 |
(194 ± 14) · 10 6 ly (59.6 ± 4.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | March 3, 1786 |
| Catalog names | |
| NGC 4703 • PGC 43342 • MCG -01-33-015 • 2MASX J12491896-0906301 • GC 3232 • H III 514 • GALEX ASC J124918.98-090628.2 • LDCE 921 NED004 | |
NGC 4703 is a 13.7 mag bright spiral galaxy of the Hubble type Sb in the constellation Virgo on the ecliptic . It is estimated to be 194 million light years away from the Milky Way and has a diameter of around 175,000 ly.
In the same area of the sky are the galaxies NGC 4699 , NGC 4716 , NGC 4717 , IC 3826 , among others .
The object was discovered on March 3, 1786 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, vS, E"; in a second observation on March 25th, he noted “small, much extended”.