IC 3997
| Galaxy IC 3997 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Hunting dogs |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 59 m 36.9 s |
| declination | + 36 ° 41 ′ 44 ″ |
| Appearance | |
| Morphological type | E3 |
| Brightness (visual) | 15.5 mag |
| Brightness (B-band) | 16.5 mag |
| Angular expansion | 0.3 ′ × 0.2 ′ |
| Position angle | 10 ° |
| Surface brightness | 12.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.015199 ± 0.000105 |
| Radial velocity | 4557 ± 31 km / s |
|
Stroke distance v rad / H 0 |
(205 ± 14) · 10 6 ly (63.0 ± 4.4) Mpc |
| history | |
| discovery | Max Wolf |
| Discovery date | March 21, 1903 |
| Catalog names | |
| IC 3997 • PGC 2085297 • 2MASS J12593701 + 3641443 • NSA 90661 • KIG 561 | |
IC 3997 is an elliptical dwarf galaxy of the Hubble type E3 in the constellation Hounds in the northern sky . It is estimated to be 205 million light years away from the Milky Way and has a diameter of around 15,000 ly.
In the same area of the sky are the galaxies NGC 4870 , IC 4002 , IC 4028 .
The object was discovered by Max Wolf on March 21, 1903 .