NGC 4240
| Galaxy NGC 4240 / NGC 4243 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Virgin |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 17 m 24.3 s |
| declination | -09 ° 57 ′ 06 ″ |
| Appearance | |
| Morphological type | E + |
| Brightness (visual) | 12.7 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.3 '× 1.2' |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.006638 ± 0.000057 |
| Radial velocity | (1990 ± 17) km / s |
|
Stroke distance v rad / H 0 |
(83 ± 6) · 10 6 ly (25.5 ± 1.8) Mpc |
| history | |
| discovery | Wilhelm Temple |
| Discovery date | May 20, 1875 |
| Catalog names | |
| NGC 4240/4243 • PGC 39411 • MCG -02-31-029 • 2MASX J12172434-0957056 • | |
NGC 4240 = NGC 4243 is an elliptical galaxy of Hubble type E in the constellation Virgo south of the ecliptic . It is an estimated 83 million light years from the Milky Way .
The object was discovered by Wilhelm Tempel on May 20, 1875 .