NGC 1031
| Galaxy NGC 1031 |
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|---|---|
![NGC 1031 & NGC 1025 [1]](https://de.wikipedia.org/wiki/Datei:NGC_1031_DSS.jpg)
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| NGC 1031 & NGC 1025 | |
| AladinLite | |
| Constellation | Pendulum clock |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 02 h 36 m 38.76 s |
| declination | -54 ° 51 ′ 35.2 ″ |
| Appearance | |
| Morphological type | SB (r) a? |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.90 × 1.1 |
| Position angle | 23 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 74 |
| Redshift | 0.018693 ± 0.000077 |
| Radial velocity | 5604 ± 23 km / s |
|
Stroke distance v rad / H 0 |
(244 ± 17) x 10 6 ly (74.9 ± 5.3) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | September 11, 1836 |
| Catalog names | |
| NGC 1031 • PGC 9907 • ESO 154-005 • 2MASX J02363879-5451350 • SGC 023505-5504.6 • GALEX ASC J023638.84-545134.4 • WISEA J023638.75-545135.4 | |
NGC 1031 is a bar-spiral galaxy of the Hubble type SBa in the constellation Horologium in the southern sky . It is estimated to be 244 million light years from the Milky Way and about 140,000 light years in diameter. Together with NGC 1136 and PGC 10415 it forms the galaxy group LGG 74.
In the same area of the sky there is u. a. the galaxy NGC 1025 .
The object was discovered by John Herschel on September 11, 1836 .