NGC 7285
| Galaxy NGC 7285 |
|
|---|---|
|
|
| NGC 7284 & NGC 7285 (center) - 2MASS | |
| AladinLite | |
| Constellation | Aquarius |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 28 m 38.0 s |
| declination | -24 ° 50 ′ 27 ″ |
| Appearance | |
| Morphological type | SB (rs) a / pec |
| Brightness (visual) | 11.9 likes |
| Brightness (B-band) | 12.8 mag |
| Angular expansion | 2.10 × 1.5 |
| Position angle | 100 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.014423 ± 0.000070 |
| Radial velocity | (+4324 ± 21) km / s |
|
Stroke distance v rad / H 0 |
(196 ± 14) · 10 6 ly (60.0 ± 4.2) Mpc |
| history | |
| discovery | William Lassell |
| Discovery date | October 1862 |
| Catalog names | |
| NGC 7285 • PGC 68953 • ESO 533-32 • MCG -04-53-05 • 2MASX i J2228380-24502 • SGC 222552-2505.8 • Arp 93 NED02 • VV 74a • GC 5078 • USGC S273 NED02 | |
NGC 7285 is a bar-spiral galaxy of the Hubble type SBa and lies in the constellation Aquarius on the ecliptic . It is estimated to be 196 million light years from the Milky Way and about 120,000 light years in diameter . The galaxy has an angular extent of 2.3 '× 1.8' and an apparent magnitude of 11.9 mag. Together with NGC 7284 , it forms the galaxy pair Arp 93 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class spiral galaxies with an elliptical companion on one arm (Arp catalog) .
The object was discovered in October 1862 by the British astronomer William Lassell .
Web links
Commons : NGC 7285 - collection of images, videos, and audio files
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