IC 1559
| Galaxy IC 1559 |
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|---|---|
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| SDSS image of NGC 169 (above) and IC 1559 (below), which gravitationally interact with one another. | |
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 00 h 36 m 52.3 s |
| declination | + 23 ° 59 ′ 06 ″ |
| Appearance | |
| Morphological type | SAB |
| Brightness (visual) | 14.0 mag |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 0.4 ′ × 0.3 ′ |
| Position angle | 10 ° |
| Surface brightness | 11.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.015327 ± 0.000057 |
| Radial velocity | 4595 17 km / s |
|
Stroke distance v rad / H 0 |
(212 ± 15) · 10 6 ly (65.0 ± 4.6) Mpc |
| history | |
| discovery | RJ Mitchell |
| Discovery date | September 18, 1857 |
| Catalog names | |
| NGC 169A • IC 1559 • PGC 2201 • CGCG 479-044 N02 • MCG + 04-02-034 • Arp 282 • Mrk 341 • KPG 13B | |
IC 1559 is a lenticular galaxy of the Hubble type S0 / a in the constellation Andromeda in the northern sky . It is estimated to be 212 million light years away from the Milky Way and has a diameter of about 25,000 ly. Together with NGC 169, it forms the interacting galaxy pair Arp 282 or KPG 13 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy pair belongs to the class double galaxies with inflow and attraction .
The galaxy NGC 160 is located in the same area of the sky .
The object was discovered on September 18, 1857 by the Irish astronomer RJ Mitchell, an assistant to William Parsons .
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