NGC 5231
| Galaxy NGC 5231 |
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|---|---|
![NGC 5231 & LEDA 214122 (r) [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC5231_-_SDSS_DR14.jpg)
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| NGC 5231 & LEDA 214122 (r) SDSS image | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 13 h 35 m 48.249 s |
| declination | + 02 ° 59 ′ 56.13 ″ |
| Appearance | |
| Morphological type | SBa / Sy 1 |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.1 ′ × 0.9 ′ |
| Position angle | 112 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.021759 ± 0.000110 |
| Radial velocity | 6523 ± 33 km / s |
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Stroke distance v rad / H 0 |
(290 ± 20) x 10 6 ly (88.8 ± 6.2) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | April 30, 1864 |
| Catalog names | |
| NGC 5231 • UGC 8574 • PGC 47953 • CGCG 045-034 • MCG + 01-35-011 • IRAS 13332 + 0315 • GC 5745 • GALEX ASC J133548.28 + 025957.0 • LDCE 997 NED004 • NVSS J133548 + 025957 | |
NGC 5231 is a 13.6 mag bright bar spiral galaxy of the Hubble type SBa with an active galaxy core in the constellation Virgo on the ecliptic . It is an estimated 290 million light-years from the Milky Way and about 95,000 light-years across. Together with LEDA 214122 it forms the galaxy pair Holm 529 .
In the same area of the sky is u. a. the galaxy NGC 5245 .
The object was discovered by Albert Marth on April 30, 1864 .
Web links
- NGC 5231. SIMBAD , accessed July 22, 2015 .
- NGC 5231. DSO Browser, accessed July 22, 2015 .
- Auke Slotegraaf : NGC 5231. Deep Sky Observer's Companion, accessed on July 22, 2015 .