IC 1991
| Galaxy IC 1991 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Pendulum clock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 44 m 46.8 s |
| declination | -51 ° 31 ′ 24 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 15.4 mag |
| Brightness (B-band) | 16.2 mag |
| Angular expansion | 0.70 × 0.3 |
| Position angle | 39 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.037606 ± 0.000113 |
| Radial velocity | 11,274 ± 34 km / s |
|
Stroke distance v rad / H 0 |
(497 ± 35) · 10 6 ly (152.3 ± 10.7) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | October 14, 1898 |
| Catalog names | |
| IC 1991 • PGC 13734 • ESO 034323-5140.8 • 2MASX J03444677-5131242 • GALEX ASC J034446.72-513123.5 | |
IC 1991 is a spiral galaxy of Hubble type Sc in the constellation pendulum clock on the southern sky . It is estimated to be 497 million light-years away from the Milky Way and has a diameter of about 100,000 ly
. a. the galaxies IC 1989 and IC 1994 .
The object was discovered by DeLisle Stewart on October 14, 1898 .