NGC 5718
| Galaxy NGC 5718 |
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|---|---|
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| SDSS image of NGC 5718, companion galaxy IC 1042 (r.) | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 40 m 42.8 s |
| declination | + 03 ° 27 ′ 56 ″ |
| Appearance | |
| Morphological type | S0 - :; BrClG |
| Brightness (visual) | 13.2 mag |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.5 ′ × 1.1 ′ |
| Position angle | 117 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.027376 ± 0.000040 |
| Radial velocity | (8207 ± 12) km / s |
|
Stroke distance v rad / H 0 |
(367 ± 26) · 10 6 ly (112.4 ± 7.9) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 30, 1786 |
| Catalog names | |
| NGC 5718 • UGC 9459 • PGC 52441 • CGCG 047-137 • MCG + 01-37-47 • Arp 171 • GC 3970 • H III 550 • h 1862 • | |
NGC 5718 is a 13.2 mag bright, lens-shaped galaxy of the Hubble type E-S0 in the constellation of Virgo and about 367 million ly from the Milky Way. Together with IC 1042 it forms the galaxy pair Arp 171 . Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class galaxies with diffuse opposing arms (Arp catalog) .
The galaxy was discovered on April 30, 1786 by Wilhelm Herschel with an 18.7-inch reflecting telescope, who described it as "vF, S, preceding and in a line with 2 bright stars".
Web links
- NGC 5718. SIMBAD, accessed April 14, 2016 .
- NGC 5718. DSO Browser, accessed April 14, 2016 .
- ARP ATLAS OF PECULIAR GALAXIES
- Seligman Arp
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