NGC 5755
| Galaxy NGC 5755 |
|
|---|---|
|
|
| v. o. n. u. NGC 5752, NGC 5754, NGC 5755, NGC 5753 = Arp 297 | |
| AladinLite | |
| Constellation | Bear keeper |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 45 m 24.5 s |
| declination | + 38 ° 46 ′ 48 ″ |
| Appearance | |
| Morphological type | SBd |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.3 mag |
| Angular expansion | 1.3 ′ × 1 ′ |
| Position angle | 15 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.032229 ± 0.000153 |
| Radial velocity | (9662 ± 46) km / s |
|
Stroke distance v rad / H 0 |
(436 ± 31) · 10 6 ly (133.8 ± 9.4) Mpc |
| diameter | 170,000 ly |
| history | |
| discovery | Lawrence Parsons |
| Discovery date | April 1, 1878 |
| Catalog names | |
| NGC 5755 • UGC 9507 • PGC 52690 • CGCG 220-053 • MCG + 07-30-063 • IRAS 14434 + 3859 • 2MASX J14452452 + 3846477 • Arp 297 NED04 • | |
NGC 5755 is a barred spiral galaxy of the Hubble type SBd in the constellation Bear Keeper in the northern sky . It is around 436 million light years away from the Milky Way and has a diameter of around 170,000 light years . The galaxy's distorted shape suggests that it forms a bound pair with NGC 5753 . Together with the pair of galaxies NGC 5752 and NGC 5754 , they form the optical quartet Arp 297 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This pair of galaxies belongs to the class of galaxies with long filaments .
The object was discovered on April 1, 1878 by Lawrence Parsons .
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