NGC 1229
| Galaxy NGC 1229 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Eridanus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 03 h 08 m 10.8 s |
| declination | -22 ° 57 ′ 39 ″ |
| Appearance | |
| Morphological type | SBb: / pec / Sy2 |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 1.4 ′ × 0.9 ′ |
| Position angle | 74 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.036292 ± 0.000030 |
| Radial velocity | 10880 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(483 ± 34) · 10 6 Lj (148.0 ± 10.4) Mpc |
| history | |
| discovery | Francis Leavenworth |
| Discovery date | 1886 |
| Catalog names | |
| NGC 1229 • PGC 11734 • ESO 480-033 • MCG -04-08-025 • IRAS 03059-2309 • SGC 030558-2309.1 • Arp 332 NED01 • VV 337b • LQAC 047-022 001 | |
NGC 1229 is an active bar-spiral galaxy of the Hubble-type SBb / P in the constellation Eridanus in the southern sky . It is an estimated 483 million light years away from the Milky Way and has a diameter of about 200,000 ly. Together with NGC 1228 , NGC 1230 and IC 1892 , it forms the chain of galaxies Arp 332 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This group of galaxies belongs to the class chains of galaxies .
The property was discovered by Francis Leavenworth in 1886 .
Web links
literature
- Jeff Kanipe and Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide " , Richmond 2006, ISBN 978-0-943396-76-7