NGC 7828
| Galaxy NGC 7828 |
|
|---|---|
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|
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 06 m 27.1 s |
| declination | -13 ° 24 ′ 58 ″ |
| Appearance | |
| Morphological type | Im / pec (ring B) |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.9 mag |
| Angular expansion | 1.0 '× 0.5' |
| Position angle | 140 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.019110 ± 0.000050 |
| Radial velocity | 5729 ± 15 km / s |
|
Stroke distance v rad / H 0 |
(259 ± 18) · 10 6 ly (79.3 ± 5.6) Mpc |
| history | |
| discovery | Francis P. Leavenworth |
| Discovery date | 1886 |
| Catalog names | |
| NGC 7828 • PGC 483 • MCG -02-01-025 NED01 • IRAS 00038-1341 • 2MASX J00062708-1324580 • Arp 144 • VV 272a • | |
| RekDekRef = | |
NGC 7828 is an irregular galaxy of Hubble type S0 in the constellation Cetus south of the ecliptic . It is an estimated 259 million light years away from the Milky Way and about 75,000 light years in diameter . Together with NGC 7829 , it forms the interacting galaxy pair Arp 144 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of elliptical galaxies with emanating material (Arp catalog) .
The property was discovered in 1886 by Francis Preserved Leavenworth .
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