IC 4240
| Galaxy IC 4240 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Hunting dogs |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 13 h 24 m 27.5 s |
| declination | + 30 ° 58 ′ 40 ″ |
| Appearance | |
| Morphological type | S0 |
| Brightness (visual) | 15.5 mag |
| Brightness (B-band) | 16.5 mag |
| Angular expansion | 0.4 ′ × 0.2 ′ |
| Position angle | 35 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.022519 ± 0.000103 |
| Radial velocity | 6751 ± 31 km / s |
|
Stroke distance v rad / H 0 |
(303 ± 21) · 10 6 ly (93.0 ± 6.5) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | May 20, 1903 |
| Catalog names | |
| IC 4240 • PGC 1926210 • 2MASX J13242757 + 3058406 • GALEXASC J132427.61 + 305840.9 | |
IC 4240 is a lenticular galaxy of the Hubble type S0 in the constellation Hounds in the northern sky . It is estimated to be 303 million light years away from the Milky Way and has a diameter of about 35,000 ly.
In the same area of the sky are the galaxies NGC 5131 , IC 4238 , IC 4239 , IC 4242 .
The object was discovered by Stéphane Javelle on May 20, 1903 .