NGC 3754
| Galaxy NGC 3754 |
|
|---|---|
|
|
| Image of the galaxies NGC 3745 , NGC 3746 , NGC 3748 , NGC 3750 , NGC 3751 , NGC 3753 and NGC 3754 with the 81 cm reflecting telescope of the Mount Lemmon Observatory . This group is also known as the Copelands Septet. NGC 3754 is at the top of the triple shown slightly to the left. | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 37 m 54.9 s |
| declination | + 21 ° 59 ′ 08 ″ |
| Appearance | |
| Morphological type | SBc |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 0.4 ′ × 0.3 ′ |
| Position angle | 18 ° |
| Surface brightness | 11.8 mag / arcmin² |
| Physical data | |
| Affiliation | Copeland's septet |
| Redshift | 0.030406 ± 0.000137 |
| Radial velocity | 8977 ± 41 km / s |
|
Stroke distance v rad / H 0 |
(399 ± 28) · 10 6 ly (122.4 ± 8.6) Mpc |
| history | |
| discovery | Ralph Copeland |
| Discovery date | April 5, 1874 |
| Catalog names | |
| NGC 3754 • PGC 36018 • CGCG 127-012 • MCG + 04-28-011 • IRAS 11352 + 2216 • 2MASX J11375498 + 2159082 • Arp part of 320 • HCG 57D • VV 282b • | |
NGC 3754 is a bar-spiral galaxy of type SBc in the constellation Leo . The galaxy was discovered on April 5, 1874 by the British astronomer Ralph Copeland .
The galaxy NCG 3754 together with NGC 3745 , NGC 3746 , NGC 3748 , NGC 3750 , NGC 3751 and NGC 3753 form the galaxy group Arp 320 , also known as Copelands Septet after the discoverer , and supplemented by the galaxy PGC 36010 the Hickson Compact Group ( HCG) 57. The galaxies NGC 3750, NGC 3753 and NGC 3754 are combined as a group with VV 282. Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This group of galaxies belongs to the class of galaxies .
Web links
Commons : NGC 3754 - collection of images, videos, and audio files
- GoBlack
- Mt. Lemmon Sky Center
- SIMBAD Astronomical Database
- 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