IC 564
| Galaxy IC 564 |
|
|---|---|
|
|
| Arp 303, Hubble Space Telescope | |
| AladinLite | |
| Constellation | sextant |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 46 m 21.1 s |
| declination | + 03 ° 04 ′ 17 ″ |
| Appearance | |
| Morphological type | SA (s) cd? / pec / VLIRG |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.1 mag |
| Angular expansion | 1.7 ′ × 0.4 ′ |
| Position angle | 68 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.019980 +/- 0.000027 |
| Radial velocity | 5990 +/- 8 km / s |
|
Stroke distance v rad / H 0 |
(261 ± 18) · 10 6 ly (80.1 ± 5.6) Mpc |
| history | |
| discovery | Stephane Javelle |
| Discovery date | March 21, 1893 |
| Catalog names | |
| IC 564 • UGC 5230 • PGC 28033 • CGCG 035-054 • MCG + 01-25-023 • 2MASX J09462109 + 0304168 • Arp 303 • LEDA 28033 | |
IC 564 is a Hubble-type Scd spiral galaxy in the constellation Sextant south of the ecliptic . It is estimated to be 261 million light years away from the Milky Way and about 135,000 light years in diameter . Together with IC 563 it forms the pair of galaxies Arp 303 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class Unclassified double galaxies .
The object was discovered by Stéphane Javelle on March 21, 1893 .
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
Individual evidence
Attention: The sorting key “IC 0564” overwrites the previously used key “IC0564”.