NGC 7585
| Galaxy NGC 7585 |
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|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Aquarius |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 23 h 18 m 01.3 s |
| declination | -04 ° 39 ′ 01 ″ |
| Appearance | |
| Morphological type | (R ') SA (s) 0+ / pec |
| Brightness (visual) | 11.4 mag |
| Brightness (B-band) | 12.3 mag |
| Angular expansion | 2.3 ′ × 2 ′ |
| Position angle | 105 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.011805 ± 0.000003 |
| Radial velocity | (3539 ± 1) km / s |
|
Stroke distance v rad / H 0 |
(163 ± 11) · 10 6 ly (50.0 ± 3.5) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | September 20, 1784 |
| Catalog names | |
| NGC 7585 • PGC 70986 • MCG -01-59-015 • 2MASX J23180134-0439010 • Arp 223 • GC 4928 • H II-236 • h 2226 • h 3979 • NSA 151039 | |
NGC 7585 = Arp 223 is a lenticular galaxy of the Hubble type S0 / a in the constellation Aquarius on the ecliptic . It is an estimated 163 million light years away from the Milky Way and about 110,000 light years in diameter. In the same area of the sky are u. a. the galaxies NGC 7576 and NGC 7592 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of galaxies with amorphous spiral arms .
The object was discovered by William Herschel on September 20, 1784 .
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