IC 1731
| Galaxy IC 1731 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | triangle |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 50 m 12.3 s |
| declination | + 27 ° 11 ′ 46 ″ |
| Appearance | |
| Morphological type | SAB (s) c: |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1.50 x 1.0 |
| Position angle | 140 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 32 |
| Redshift | 0.011685 +/- 0.000003 |
| Radial velocity | 3503 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(162 ± 11) · 10 6 ly (49.6 ± 3.5) Mpc |
| history | |
| discovery | Isaac Roberts |
| Discovery date | November 29, 1896 |
| Catalog names | |
| IC 1731 • UGC 01291 • PGC 006756 • MCG + 04-05-018 • IRAS F01473 + 2656 • 2MASX J01501233 + 2711464 • | |
IC 1731 is a bar-spiral galaxy of the Hubble type SBc in the constellation Triangle in the northern sky . It is an estimated 162 million light years away from the Milky Way and has a diameter of around 70,000 ly.
In the same area of the sky are the galaxies NGC 670 , NGC 672 , NGC 684 , IC 1727 .
The Type Ia supernova SN 1983R was observed here.
The object was discovered by Isaac Roberts on November 29, 1896 .