NGC 1531
| Galaxy NGC 1531 |
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| The galaxies NGC 1531 (above) and NGC 1532 (below) captured by the 1.5 m telescope of the La Silla Observatory | |
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 04 h 11 m 59.3 s |
| declination | -32 ° 51 ′ 03 ″ |
| Appearance | |
| Morphological type | S0- pec: |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.7 mag |
| Angular expansion | 1.2 ′ × 0.9 ′ |
| Position angle | 122 ° |
| Surface brightness | 11.9 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 111 |
| Redshift | (3525) · 10 −6 |
| Radial velocity | 1055 km / s |
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Stroke distance v rad / H 0 |
(46 ± 4) · 10 6 ly (14.1 ± 1.1) Mpc |
| diameter | 20,000 ly |
| history | |
| discovery | John Herschel |
| Discovery date | October 19, 1835 |
| Catalog names | |
| NGC 1531 • PGC 14635 • ESO 359-G026 • MCG -05-11-001 • 2MASX J04115932-3251028 • SGC 041004-3258.6 • GC 822 • h 2620 • AM 0410-325, LDCE 0289 NED001 | |
NGC 1531 is an elliptical galaxy of Hubble type E / S0? pec in the constellation Eridanus in the southern sky . It is around 55 million light years away from the Milky Way and has a diameter of around 20,000 light years .
The galaxy is in interactive contact with the much larger spiral galaxy NGC 1532 , which can be seen very nicely in the deformations and starburst regions of the spiral.
The galaxy NGC 1531 was discovered on October 19, 1835 by the British astronomer John Herschel .
Web links
Commons : NGC 1531 - collection of images, videos, and audio files
- Galaxies in the River - Astronomy Picture of the Day of November 27, 2008.
- NGC 1531/2: Interacting Galaxies - Astronomy Picture of the Day of March 1, 2005 (English).
- ESO: Ballet of interacting galaxies December 3, 2009
- astronews.com: Picture of the day December 14, 2011
- SIMBAD Astronomical Database